28718729

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4481}}^1$

素因数の和:4540

約数の個数: 16

約数和(自身を含む): 33883920

約数和(自身を除く): 5165191

約数列:

[1, 13, 17, 29, 221, 377, 493, 4481, 6409, 58253, 76177, 129949, 990301, 1689337, 2209133, 28718729]

約数ペア:

[(1, 28718729), (13, 2209133), (17, 1689337), (29, 990301), (221, 129949), (377, 76177), (493, 58253), (4481, 6409)]