13661405

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:796

約数の個数: 16

約数和(自身を含む): 16982784

約数和(自身を除く): 3321379

約数列:

[1, 5, 41, 103, 205, 515, 647, 3235, 4223, 21115, 26527, 66641, 132635, 333205, 2732281, 13661405]

約数ペア:

[(1, 13661405), (5, 2732281), (41, 333205), (103, 132635), (205, 66641), (515, 26527), (647, 21115), (3235, 4223)]