81620902

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{7121}}^1$

素因数の和:7655

約数の個数: 16

約数和(自身を含む): 133836624

約数和(自身を除く): 52215722

約数列:

[1, 2, 11, 22, 521, 1042, 5731, 7121, 11462, 14242, 78331, 156662, 3710041, 7420082, 40810451, 81620902]

約数ペア:

[(1, 81620902), (2, 40810451), (11, 7420082), (22, 3710041), (521, 156662), (1042, 78331), (5731, 14242), (7121, 11462)]