19716818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21859}}^1$

素因数の和:21913

約数の個数: 16

約数和(自身を含む): 33052320

約数和(自身を除く): 13335502

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21859, 43718, 240449, 480898, 896219, 1792438, 9858409, 19716818]

約数ペア:

[(1, 19716818), (2, 9858409), (11, 1792438), (22, 896219), (41, 480898), (82, 240449), (451, 43718), (902, 21859)]