20979887

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53657}}^1$

素因数の和:53697

約数の個数: 8

約数和(自身を含む): 23180256

約数和(自身を除く): 2200369

約数列:

[1, 17, 23, 391, 53657, 912169, 1234111, 20979887]

約数ペア:

[(1, 20979887), (17, 1234111), (23, 912169), (391, 53657)]