21521044

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{457}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 38561768

約数和(自身を除く): 17040724

約数列:

[1, 2, 4, 61, 122, 193, 244, 386, 457, 772, 914, 1828, 11773, 23546, 27877, 47092, 55754, 88201, 111508, 176402, 352804, 5380261, 10760522, 21521044]

約数ペア:

[(1, 21521044), (2, 10760522), (4, 5380261), (61, 352804), (122, 176402), (193, 111508), (244, 88201), (386, 55754), (457, 47092), (772, 27877), (914, 23546), (1828, 11773)]