16991585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15377}}^1$

素因数の和:15412

約数の個数: 16

約数和(自身を含む): 23251536

約数和(自身を除く): 6259951

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 15377, 76885, 199901, 261409, 999505, 1307045, 3398317, 16991585]

約数ペア:

[(1, 16991585), (5, 3398317), (13, 1307045), (17, 999505), (65, 261409), (85, 199901), (221, 76885), (1105, 15377)]