21669960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1$

素因数の和:535

約数の個数: 128

約数和(自身を含む): 72576000

約数和(自身を除く): 50906040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 29, 30, 39, 40, 52, 58, 60, 65, 78, 87, 104, 116, 120, 130, 145, 156, 174, 195, 232, 260, 290, 312, 348, 377, 390, 435, 479, 520, 580, 696, 754, 780, 870, 958, 1131, 1160, 1437, 1508, 1560, 1740, 1885, 1916, 2262, 2395, 2874, 3016, 3480, 3770, 3832, 4524, 4790, 5655, 5748, 6227, 7185, 7540, 9048, 9580, 11310, 11496, 12454, 13891, 14370, 15080, 18681, 19160, 22620, 24908, 27782, 28740, 31135, 37362, 41673, 45240, 49816, 55564, 57480, 62270, 69455, 74724, 83346, 93405, 111128, 124540, 138910, 149448, 166692, 180583, 186810, 208365, 249080, 277820, 333384, 361166, 373620, 416730, 541749, 555640, 722332, 747240, 833460, 902915, 1083498, 1444664, 1666920, 1805830, 2166996, 2708745, 3611660, 4333992, 5417490, 7223320, 10834980, 21669960]

約数ペア:

[(1, 21669960), (2, 10834980), (3, 7223320), (4, 5417490), (5, 4333992), (6, 3611660), (8, 2708745), (10, 2166996), (12, 1805830), (13, 1666920), (15, 1444664), (20, 1083498), (24, 902915), (26, 833460), (29, 747240), (30, 722332), (39, 555640), (40, 541749), (52, 416730), (58, 373620), (60, 361166), (65, 333384), (78, 277820), (87, 249080), (104, 208365), (116, 186810), (120, 180583), (130, 166692), (145, 149448), (156, 138910), (174, 124540), (195, 111128), (232, 93405), (260, 83346), (290, 74724), (312, 69455), (348, 62270), (377, 57480), (390, 55564), (435, 49816), (479, 45240), (520, 41673), (580, 37362), (696, 31135), (754, 28740), (780, 27782), (870, 24908), (958, 22620), (1131, 19160), (1160, 18681), (1437, 15080), (1508, 14370), (1560, 13891), (1740, 12454), (1885, 11496), (1916, 11310), (2262, 9580), (2395, 9048), (2874, 7540), (3016, 7185), (3480, 6227), (3770, 5748), (3832, 5655), (4524, 4790)]