21000628

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1063}}^1$

素因数の和:1527

約数の個数: 24

約数和(自身を含む): 40219200

約数和(自身を除く): 19218572

約数列:

[1, 2, 4, 11, 22, 44, 449, 898, 1063, 1796, 2126, 4252, 4939, 9878, 11693, 19756, 23386, 46772, 477287, 954574, 1909148, 5250157, 10500314, 21000628]

約数ペア:

[(1, 21000628), (2, 10500314), (4, 5250157), (11, 1909148), (22, 954574), (44, 477287), (449, 46772), (898, 23386), (1063, 19756), (1796, 11693), (2126, 9878), (4252, 4939)]