12687895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{661}}^1$

素因数の和:1026

約数の個数: 16

約数和(自身を含む): 16682400

約数和(自身を除く): 3994505

約数列:

[1, 5, 11, 55, 349, 661, 1745, 3305, 3839, 7271, 19195, 36355, 230689, 1153445, 2537579, 12687895]

約数ペア:

[(1, 12687895), (5, 2537579), (11, 1153445), (55, 230689), (349, 36355), (661, 19195), (1745, 7271), (3305, 3839)]