31331209

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{18121}}^1$

素因数の和:18160

約数の個数: 16

約数和(自身を含む): 40593280

約数和(自身を除く): 9262071

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 18121, 126847, 235573, 344299, 1649011, 2410093, 4475887, 31331209]

約数ペア:

[(1, 31331209), (7, 4475887), (13, 2410093), (19, 1649011), (91, 344299), (133, 235573), (247, 126847), (1729, 18121)]