28721715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{174071}}^1$

素因数の和:174090

約数の個数: 16

約数和(自身を含む): 50132736

約数和(自身を除く): 21411021

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 174071, 522213, 870355, 1914781, 2611065, 5744343, 9573905, 28721715]

約数ペア:

[(1, 28721715), (3, 9573905), (5, 5744343), (11, 2611065), (15, 1914781), (33, 870355), (55, 522213), (165, 174071)]