2171385

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{661}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 3821064

約数和(自身を除く): 1649679

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 661, 1095, 1983, 3285, 3305, 5949, 9915, 29745, 48253, 144759, 241265, 434277, 723795, 2171385]

約数ペア:

[(1, 2171385), (3, 723795), (5, 434277), (9, 241265), (15, 144759), (45, 48253), (73, 29745), (219, 9915), (365, 5949), (657, 3305), (661, 3285), (1095, 1983)]