21904290

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2617}}^1$

素因数の和:2664

約数の個数: 64

約数和(自身を含む): 60318720

約数和(自身を除く): 38414430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 90, 93, 135, 155, 186, 270, 279, 310, 465, 558, 837, 930, 1395, 1674, 2617, 2790, 4185, 5234, 7851, 8370, 13085, 15702, 23553, 26170, 39255, 47106, 70659, 78510, 81127, 117765, 141318, 162254, 235530, 243381, 353295, 405635, 486762, 706590, 730143, 811270, 1216905, 1460286, 2190429, 2433810, 3650715, 4380858, 7301430, 10952145, 21904290]

約数ペア:

[(1, 21904290), (2, 10952145), (3, 7301430), (5, 4380858), (6, 3650715), (9, 2433810), (10, 2190429), (15, 1460286), (18, 1216905), (27, 811270), (30, 730143), (31, 706590), (45, 486762), (54, 405635), (62, 353295), (90, 243381), (93, 235530), (135, 162254), (155, 141318), (186, 117765), (270, 81127), (279, 78510), (310, 70659), (465, 47106), (558, 39255), (837, 26170), (930, 23553), (1395, 15702), (1674, 13085), (2617, 8370), (2790, 7851), (4185, 5234)]