398538842

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{1179109}}^1$

素因数の和:1179137

約数の個数: 12

約数和(自身を含む): 647331390

約数和(自身を除く): 248792548

約数列:

[1, 2, 13, 26, 169, 338, 1179109, 2358218, 15328417, 30656834, 199269421, 398538842]

約数ペア:

[(1, 398538842), (2, 199269421), (13, 30656834), (26, 15328417), (169, 2358218), (338, 1179109)]