131718286

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{409063}}^1$

素因数の和:409095

約数の個数: 16

約数和(自身を含む): 235620864

約数和(自身を除く): 103902578

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 409063, 818126, 2863441, 5726882, 9408449, 18816898, 65859143, 131718286]

約数ペア:

[(1, 131718286), (2, 65859143), (7, 18816898), (14, 9408449), (23, 5726882), (46, 2863441), (161, 818126), (322, 409063)]