18108945

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3907}}^1$

素因数の和:4021

約数の個数: 24

約数和(自身を含む): 31701696

約数和(自身を除く): 13592751

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 3907, 4635, 11721, 19535, 35163, 58605, 175815, 402421, 1207263, 2012105, 3621789, 6036315, 18108945]

約数ペア:

[(1, 18108945), (3, 6036315), (5, 3621789), (9, 2012105), (15, 1207263), (45, 402421), (103, 175815), (309, 58605), (515, 35163), (927, 19535), (1545, 11721), (3907, 4635)]