215511121

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1\times {\mathrm{1979}}^1$

素因数の和:2364

約数の個数: 16

約数和(自身を含む): 252426240

約数和(自身を除く): 36915119

約数列:

[1, 7, 47, 329, 331, 1979, 2317, 13853, 15557, 93013, 108899, 651091, 655049, 4585343, 30787303, 215511121]

約数ペア:

[(1, 215511121), (7, 30787303), (47, 4585343), (329, 655049), (331, 651091), (1979, 108899), (2317, 93013), (13853, 15557)]