15978721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 18361728

約数和(自身を除く): 2383007

約数列:

[1, 11, 23, 137, 253, 461, 1507, 3151, 5071, 10603, 34661, 63157, 116633, 694727, 1452611, 15978721]

約数ペア:

[(1, 15978721), (11, 1452611), (23, 694727), (137, 116633), (253, 63157), (461, 34661), (1507, 10603), (3151, 5071)]