18005353605

素因数分解:

$3^2\times 5^1\times {\mathrm{400118969}}^1$

素因数の和:400118980

約数の個数: 12

約数和(自身を含む): 31209279660

約数和(自身を除く): 13203926055

約数列:

[1, 3, 5, 9, 15, 45, 400118969, 1200356907, 2000594845, 3601070721, 6001784535, 18005353605]

約数ペア:

[(1, 18005353605), (3, 6001784535), (5, 3601070721), (9, 2000594845), (15, 1200356907), (45, 400118969)]