21288912

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{11987}}^1$

素因数の和:12035

約数の個数: 40

約数和(自身を含む): 56487456

約数和(自身を除く): 35198544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 11987, 23974, 35961, 47948, 71922, 95896, 143844, 191792, 287688, 443519, 575376, 887038, 1330557, 1774076, 2661114, 3548152, 5322228, 7096304, 10644456, 21288912]

約数ペア:

[(1, 21288912), (2, 10644456), (3, 7096304), (4, 5322228), (6, 3548152), (8, 2661114), (12, 1774076), (16, 1330557), (24, 887038), (37, 575376), (48, 443519), (74, 287688), (111, 191792), (148, 143844), (222, 95896), (296, 71922), (444, 47948), (592, 35961), (888, 23974), (1776, 11987)]