18510561

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 28094976

約数和(自身を除く): 9584415

約数列:

[1, 3, 9, 23, 69, 207, 223, 401, 669, 1203, 2007, 3609, 5129, 9223, 15387, 27669, 46161, 83007, 89423, 268269, 804807, 2056729, 6170187, 18510561]

約数ペア:

[(1, 18510561), (3, 6170187), (9, 2056729), (23, 804807), (69, 268269), (207, 89423), (223, 83007), (401, 46161), (669, 27669), (1203, 15387), (2007, 9223), (3609, 5129)]