18668980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{84859}}^1$

素因数の和:84879

約数の個数: 24

約数和(自身を含む): 42769440

約数和(自身を除く): 24100460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 84859, 169718, 339436, 424295, 848590, 933449, 1697180, 1866898, 3733796, 4667245, 9334490, 18668980]

約数ペア:

[(1, 18668980), (2, 9334490), (4, 4667245), (5, 3733796), (10, 1866898), (11, 1697180), (20, 933449), (22, 848590), (44, 424295), (55, 339436), (110, 169718), (220, 84859)]