20778116

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{1129}}^1$

素因数の和:1283

約数の個数: 24

約数和(自身を含む): 37588320

約数和(自身を除く): 16810204

約数列:

[1, 2, 4, 43, 86, 107, 172, 214, 428, 1129, 2258, 4516, 4601, 9202, 18404, 48547, 97094, 120803, 194188, 241606, 483212, 5194529, 10389058, 20778116]

約数ペア:

[(1, 20778116), (2, 10389058), (4, 5194529), (43, 483212), (86, 241606), (107, 194188), (172, 120803), (214, 97094), (428, 48547), (1129, 18404), (2258, 9202), (4516, 4601)]