20511085

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3881}}^1$

素因数の和:4044

約数の個数: 16

約数和(自身を含む): 28323072

約数和(自身を除く): 7811987

約数列:

[1, 5, 7, 35, 151, 755, 1057, 3881, 5285, 19405, 27167, 135835, 586031, 2930155, 4102217, 20511085]

約数ペア:

[(1, 20511085), (5, 4102217), (7, 2930155), (35, 586031), (151, 135835), (755, 27167), (1057, 19405), (3881, 5285)]