9908405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 13789440

約数和(自身を除く): 3881035

約数列:

[1, 5, 13, 19, 65, 71, 95, 113, 247, 355, 565, 923, 1235, 1349, 1469, 2147, 4615, 6745, 7345, 8023, 10735, 17537, 27911, 40115, 87685, 104299, 139555, 152437, 521495, 762185, 1981681, 9908405]

約数ペア:

[(1, 9908405), (5, 1981681), (13, 762185), (19, 521495), (65, 152437), (71, 139555), (95, 104299), (113, 87685), (247, 40115), (355, 27911), (565, 17537), (923, 10735), (1235, 8023), (1349, 7345), (1469, 6745), (2147, 4615)]