18820604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{821}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 36043056

約数和(自身を除く): 17222452

約数列:

[1, 2, 4, 11, 22, 44, 521, 821, 1042, 1642, 2084, 3284, 5731, 9031, 11462, 18062, 22924, 36124, 427741, 855482, 1710964, 4705151, 9410302, 18820604]

約数ペア:

[(1, 18820604), (2, 9410302), (4, 4705151), (11, 1710964), (22, 855482), (44, 427741), (521, 36124), (821, 22924), (1042, 18062), (1642, 11462), (2084, 9031), (3284, 5731)]