28851571

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 33758208

約数和(自身を除く): 4906637

約数列:

[1, 7, 73, 131, 431, 511, 917, 3017, 9563, 31463, 56461, 66941, 220241, 395227, 4121653, 28851571]

約数ペア:

[(1, 28851571), (7, 4121653), (73, 395227), (131, 220241), (431, 66941), (511, 56461), (917, 31463), (3017, 9563)]