21285420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{941}}^1$

素因数の和:995

約数の個数: 96

約数和(自身を含む): 66467520

約数和(自身を除く): 45182100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 78, 87, 116, 130, 145, 156, 174, 195, 260, 290, 348, 377, 390, 435, 580, 754, 780, 870, 941, 1131, 1508, 1740, 1882, 1885, 2262, 2823, 3764, 3770, 4524, 4705, 5646, 5655, 7540, 9410, 11292, 11310, 12233, 14115, 18820, 22620, 24466, 27289, 28230, 36699, 48932, 54578, 56460, 61165, 73398, 81867, 109156, 122330, 136445, 146796, 163734, 183495, 244660, 272890, 327468, 354757, 366990, 409335, 545780, 709514, 733980, 818670, 1064271, 1419028, 1637340, 1773785, 2128542, 3547570, 4257084, 5321355, 7095140, 10642710, 21285420]

約数ペア:

[(1, 21285420), (2, 10642710), (3, 7095140), (4, 5321355), (5, 4257084), (6, 3547570), (10, 2128542), (12, 1773785), (13, 1637340), (15, 1419028), (20, 1064271), (26, 818670), (29, 733980), (30, 709514), (39, 545780), (52, 409335), (58, 366990), (60, 354757), (65, 327468), (78, 272890), (87, 244660), (116, 183495), (130, 163734), (145, 146796), (156, 136445), (174, 122330), (195, 109156), (260, 81867), (290, 73398), (348, 61165), (377, 56460), (390, 54578), (435, 48932), (580, 36699), (754, 28230), (780, 27289), (870, 24466), (941, 22620), (1131, 18820), (1508, 14115), (1740, 12233), (1882, 11310), (1885, 11292), (2262, 9410), (2823, 7540), (3764, 5655), (3770, 5646), (4524, 4705)]