20406953

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{769}}^1$

素因数の和:1016

約数の個数: 16

約数和(自身を含む): 24837120

約数和(自身を除く): 4430167

約数列:

[1, 7, 17, 119, 223, 769, 1561, 3791, 5383, 13073, 26537, 91511, 171487, 1200409, 2915279, 20406953]

約数ペア:

[(1, 20406953), (7, 2915279), (17, 1200409), (119, 171487), (223, 91511), (769, 26537), (1561, 13073), (3791, 5383)]