20495511

素因数分解:

$3^4\times {\mathrm{401}}^1\times {\mathrm{631}}^1$

素因数の和:1044

約数の個数: 20

約数和(自身を含む): 30741744

約数和(自身を除く): 10246233

約数列:

[1, 3, 9, 27, 81, 401, 631, 1203, 1893, 3609, 5679, 10827, 17037, 32481, 51111, 253031, 759093, 2277279, 6831837, 20495511]

約数ペア:

[(1, 20495511), (3, 6831837), (9, 2277279), (27, 759093), (81, 253031), (401, 51111), (631, 32481), (1203, 17037), (1893, 10827), (3609, 5679)]