20518855

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5479}}^1$

素因数の和:5598

約数の個数: 16

約数和(自身を含む): 28408320

約数和(自身を除く): 7889465

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5479, 27395, 38353, 191765, 586253, 2931265, 4103771, 20518855]

約数ペア:

[(1, 20518855), (5, 4103771), (7, 2931265), (35, 586253), (107, 191765), (535, 38353), (749, 27395), (3745, 5479)]