81302123

素因数分解:

$7^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 97100640

約数和(自身を除く): 15798517

約数列:

[1, 7, 49, 89, 103, 181, 623, 721, 1267, 4361, 5047, 8869, 9167, 16109, 18643, 64169, 112763, 130501, 449183, 789341, 913507, 1659227, 11614589, 81302123]

約数ペア:

[(1, 81302123), (7, 11614589), (49, 1659227), (89, 913507), (103, 789341), (181, 449183), (623, 130501), (721, 112763), (1267, 64169), (4361, 18643), (5047, 16109), (8869, 9167)]