42491197

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:780

約数の個数: 16

約数和(自身を含む): 49711104

約数和(自身を除く): 7219907

約数列:

[1, 7, 61, 191, 427, 521, 1337, 3647, 11651, 31781, 81557, 99511, 222467, 696577, 6070171, 42491197]

約数ペア:

[(1, 42491197), (7, 6070171), (61, 696577), (191, 222467), (427, 99511), (521, 81557), (1337, 31781), (3647, 11651)]