21985076

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1657}}^1$

素因数の和:1799

約数の個数: 24

約数和(自身を含む): 40110336

約数和(自身を除く): 18125260

約数列:

[1, 2, 4, 31, 62, 107, 124, 214, 428, 1657, 3314, 3317, 6628, 6634, 13268, 51367, 102734, 177299, 205468, 354598, 709196, 5496269, 10992538, 21985076]

約数ペア:

[(1, 21985076), (2, 10992538), (4, 5496269), (31, 709196), (62, 354598), (107, 205468), (124, 177299), (214, 102734), (428, 51367), (1657, 13268), (3314, 6634), (3317, 6628)]