21487431679

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{4051}}^1\times {\mathrm{5531}}^1$

素因数の和:9726

約数の個数: 16

約数和(自身を含む): 24746893056

約数和(自身を除く): 3259461377

約数列:

[1, 7, 137, 959, 4051, 5531, 28357, 38717, 554987, 757747, 3884909, 5304229, 22406081, 156842567, 3069633097, 21487431679]

約数ペア:

[(1, 21487431679), (7, 3069633097), (137, 156842567), (959, 22406081), (4051, 5304229), (5531, 3884909), (28357, 757747), (38717, 554987)]