71257319

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{653}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 88572528

約数和(自身を除く): 17315209

約数列:

[1, 7, 17, 49, 119, 131, 653, 833, 917, 2227, 4571, 6419, 11101, 15589, 31997, 77707, 85543, 109123, 543949, 598801, 1454231, 4191607, 10179617, 71257319]

約数ペア:

[(1, 71257319), (7, 10179617), (17, 4191607), (49, 1454231), (119, 598801), (131, 543949), (653, 109123), (833, 85543), (917, 77707), (2227, 31997), (4571, 15589), (6419, 11101)]