815557919

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{19609}}^1$

素因数の和:19838

約数の個数: 16

約数和(自身を含む): 941280000

約数和(自身を除く): 125722081

約数列:

[1, 11, 19, 199, 209, 2189, 3781, 19609, 41591, 215699, 372571, 3902191, 4098281, 42924101, 74141629, 815557919]

約数ペア:

[(1, 815557919), (11, 74141629), (19, 42924101), (199, 4098281), (209, 3902191), (2189, 372571), (3781, 215699), (19609, 41591)]