20994765

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127241}}^1$

素因数の和:127260

約数の個数: 16

約数和(自身を含む): 36645696

約数和(自身を除く): 15650931

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127241, 381723, 636205, 1399651, 1908615, 4198953, 6998255, 20994765]

約数ペア:

[(1, 20994765), (3, 6998255), (5, 4198953), (11, 1908615), (15, 1399651), (33, 636205), (55, 381723), (165, 127241)]