21130576

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{3229}}^1$

素因数の和:3646

約数の個数: 20

約数和(自身を含む): 41053300

約数和(自身を除く): 19922724

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3229, 3272, 6458, 6544, 12916, 25832, 51664, 1320661, 2641322, 5282644, 10565288, 21130576]

約数ペア:

[(1, 21130576), (2, 10565288), (4, 5282644), (8, 2641322), (16, 1320661), (409, 51664), (818, 25832), (1636, 12916), (3229, 6544), (3272, 6458)]