12641915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17681}}^1$

素因数の和:17710

約数の個数: 16

約数和(自身を含む): 17823456

約数和(自身を除く): 5181541

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 17681, 88405, 194491, 229853, 972455, 1149265, 2528383, 12641915]

約数ペア:

[(1, 12641915), (5, 2528383), (11, 1149265), (13, 972455), (55, 229853), (65, 194491), (143, 88405), (715, 17681)]