16121405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{4139}}^1$

素因数の和:4204

約数の個数: 16

約数和(自身を含む): 20865600

約数和(自身を除く): 4744195

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 4139, 20695, 78641, 169699, 393205, 848495, 3224281, 16121405]

約数ペア:

[(1, 16121405), (5, 3224281), (19, 848495), (41, 393205), (95, 169699), (205, 78641), (779, 20695), (3895, 4139)]