123291212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{821}}^1\times {\mathrm{3413}}^1$

素因数の和:4249

約数の個数: 24

約数和(自身を含む): 235729872

約数和(自身を除く): 112438660

約数列:

[1, 2, 4, 11, 22, 44, 821, 1642, 3284, 3413, 6826, 9031, 13652, 18062, 36124, 37543, 75086, 150172, 2802073, 5604146, 11208292, 30822803, 61645606, 123291212]

約数ペア:

[(1, 123291212), (2, 61645606), (4, 30822803), (11, 11208292), (22, 5604146), (44, 2802073), (821, 150172), (1642, 75086), (3284, 37543), (3413, 36124), (6826, 18062), (9031, 13652)]