9905721

素因数分解:

$3^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{829}}^1$

素因数の和:1408

約数の個数: 16

約数和(自身を含む): 15139200

約数和(自身を除く): 5233479

約数列:

[1, 3, 7, 21, 569, 829, 1707, 2487, 3983, 5803, 11949, 17409, 471701, 1415103, 3301907, 9905721]

約数ペア:

[(1, 9905721), (3, 3301907), (7, 1415103), (21, 471701), (569, 17409), (829, 11949), (1707, 5803), (2487, 3983)]