The Integers 1901 to 2000

  • Count(d(N)) is the number of positive divisors of n, including 1 and n itself.
  • σ(N) is the Divisor Function. It represents the sum of all the positive divisors of n, including 1 and n itself.
  • s(N) is the Restricted Divisor Function. It represents the sum of the proper divisors of n, excluding n itself.
  • For a Prime Number, Count(d(N))=2. The only divisors for a Prime Number are 1 and itself.
  • A Deficient Number is greater than the sum of its proper divisors; that is, s(N)<n.
  • An Abundant Number is less than the sum of its proper divisors; that is, s(N)>n.
  • A Perfect Number equals the sum of its proper divisors; that is, s(N)=n.
N Divisors of N Count(d(N)) σ(N) s(N) Prime or Composite Notes
19011, 1901219021PrimeDeficient
19021, 2, 3, 6, 317, 634, 951, 1902838161914CompositeAbundant
19031, 11, 173, 190342088185CompositeDeficient
19041, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 19042044642560CompositeAbundant
19051, 3, 5, 15, 127, 381, 635, 1905830721167CompositeDeficient
19061, 2, 953, 190642862956CompositeDeficient
19071, 1907219081PrimeDeficient
19081, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 19081849143006CompositeAbundant
19091, 23, 83, 190942016107CompositeDeficient
19101, 2, 5, 10, 191, 382, 955, 1910834561546CompositeDeficient
19111, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 19111231921281CompositeDeficient
19121, 2, 4, 8, 239, 478, 956, 1912836001688CompositeDeficient
19131, 1913219141PrimeDeficient
19141, 2, 3, 6, 11, 22, 29, 33, 58, 66, 87, 174, 319, 638, 957, 19141643202406CompositeAbundant
19151, 5, 383, 191542304389CompositeDeficient
19161, 2, 4, 479, 958, 1916633601444CompositeDeficient
19171, 3, 9, 27, 71, 213, 639, 191782880963CompositeDeficient
19181, 2, 7, 14, 137, 274, 959, 1918833121394CompositeDeficient
19191, 19, 101, 191942040121CompositeDeficient
19201, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 19203261204200CompositeAbundant
19211, 17, 113, 192142052131CompositeDeficient
19221, 2, 31, 62, 961, 1922629791057CompositeDeficient
19231, 3, 641, 192342568645CompositeDeficient
19241, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 19241237241800CompositeDeficient
19251, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 19251229761051CompositeDeficient
19261, 2, 3, 6, 9, 18, 107, 214, 321, 642, 963, 19261242122286CompositeAbundant
19271, 41, 47, 19274201689CompositeDeficient
19281, 2, 4, 8, 241, 482, 964, 1928836301702CompositeDeficient
19291, 3, 643, 192942576647CompositeDeficient
19301, 2, 5, 10, 193, 386, 965, 1930834921562CompositeDeficient
19311, 1931219321PrimeDeficient
19321, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 138, 161, 276, 322, 483, 644, 966, 19322453763444CompositeAbundant
19331, 1933219341PrimeDeficient
19341, 2, 967, 193442904970CompositeDeficient
19351, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 19351234321497CompositeDeficient
19361, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 242, 484, 968, 19361541232187CompositeAbundant
19371, 13, 149, 193742100163CompositeDeficient
19381, 2, 3, 6, 17, 19, 34, 38, 51, 57, 102, 114, 323, 646, 969, 19381643202382CompositeAbundant
19391, 7, 277, 193942224285CompositeDeficient
19401, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 19401241162176CompositeAbundant
19411, 3, 647, 194142592651CompositeDeficient
19421, 2, 971, 194242916974CompositeDeficient
19431, 29, 67, 19434204097CompositeDeficient
19441, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 19442454603516CompositeAbundant
19451, 5, 389, 194542340395CompositeDeficient
19461, 2, 7, 14, 139, 278, 973, 1946833601414CompositeDeficient
19471, 3, 11, 33, 59, 177, 649, 194782880933CompositeDeficient
19481, 2, 4, 487, 974, 1948634161468CompositeDeficient
19491, 1949219501PrimeDeficient
19501, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 19502452083258CompositeAbundant
19511, 1951219521PrimeDeficient
19521, 2, 4, 8, 16, 32, 61, 122, 244, 488, 976, 19521239061954CompositeAbundant
19531, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 19531233281375CompositeDeficient
19541, 2, 977, 195442934980CompositeDeficient
19551, 5, 17, 23, 85, 115, 391, 195582592637CompositeDeficient
19561, 2, 3, 4, 6, 12, 163, 326, 489, 652, 978, 19561245922636CompositeAbundant
19571, 19, 103, 195742080123CompositeDeficient
19581, 2, 11, 22, 89, 178, 979, 1958832401282CompositeDeficient
19591, 3, 653, 195942616657CompositeDeficient
19601, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 19602451303170CompositeAbundant
19611, 37, 53, 19614205291CompositeDeficient
19621, 2, 3, 6, 9, 18, 109, 218, 327, 654, 981, 19621242902328CompositeAbundant
19631, 13, 151, 196342128165CompositeDeficient
19641, 2, 4, 491, 982, 1964634441480CompositeDeficient
19651, 3, 5, 15, 131, 393, 655, 1965831681203CompositeDeficient
19661, 2, 983, 196642952986CompositeDeficient
19671, 7, 281, 196742256289CompositeDeficient
19681, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 19682052083240CompositeAbundant
19691, 11, 179, 196942160191CompositeDeficient
19701, 2, 5, 10, 197, 394, 985, 1970835641594CompositeDeficient
19711, 3, 9, 27, 73, 219, 657, 197182960989CompositeDeficient
19721, 2, 4, 17, 29, 34, 58, 68, 116, 493, 986, 19721237801808CompositeDeficient
19731, 1973219741PrimeDeficient
19741, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 19741646082634CompositeAbundant
19751, 5, 25, 79, 395, 197562480505CompositeDeficient
19761, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 19761642002224CompositeAbundant
19771, 3, 659, 197742640663CompositeDeficient
19781, 2, 23, 43, 46, 86, 989, 1978831681190CompositeDeficient
19791, 1979219801PrimeDeficient
19801, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 19803665524572CompositeAbundant
19811, 7, 283, 198142272291CompositeDeficient
19821, 2, 991, 198242976994CompositeDeficient
19831, 3, 661, 198342648665CompositeDeficient
19841, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 992, 19841440642080CompositeAbundant
19851, 5, 397, 198542388403CompositeDeficient
19861, 2, 3, 6, 331, 662, 993, 1986839841998CompositeAbundant
19871, 1987219881PrimeDeficient
19881, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 19881240322044CompositeAbundant
19891, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 19891232761287CompositeDeficient
19901, 2, 5, 10, 199, 398, 995, 1990836001610CompositeDeficient
19911, 11, 181, 199142184193CompositeDeficient
19921, 2, 3, 4, 6, 8, 12, 24, 83, 166, 249, 332, 498, 664, 996, 19921650403048CompositeAbundant
19931, 1993219941PrimeDeficient
19941, 2, 997, 1994429941000CompositeDeficient
19951, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 19951638401845CompositeDeficient
19961, 2, 4, 499, 998, 1996635001504CompositeDeficient
19971, 1997219981PrimeDeficient
19981, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 19981645602562CompositeAbundant
19991, 1999220001PrimeDeficient
20001, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 20002048362836CompositeAbundant