21880216

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{25561}}^1$

素因数の和:25674

約数の個数: 16

約数和(自身を含む): 41410440

約数和(自身を除く): 19530224

約数列:

[1, 2, 4, 8, 107, 214, 428, 856, 25561, 51122, 102244, 204488, 2735027, 5470054, 10940108, 21880216]

約数ペア:

[(1, 21880216), (2, 10940108), (4, 5470054), (8, 2735027), (107, 204488), (214, 102244), (428, 51122), (856, 25561)]