20777213

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{661}}^1$

素因数の和:764

約数の個数: 12

約数和(自身を含む): 22556988

約数和(自身を除く): 1779775

約数列:

[1, 17, 43, 661, 731, 1849, 11237, 28423, 31433, 483191, 1222189, 20777213]

約数ペア:

[(1, 20777213), (17, 1222189), (43, 483191), (661, 31433), (731, 28423), (1849, 11237)]