20591969

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 22505472

約数和(自身を除く): 1913503

約数列:

[1, 23, 43, 47, 443, 989, 1081, 2021, 10189, 19049, 20821, 46483, 438127, 478883, 895303, 20591969]

約数ペア:

[(1, 20591969), (23, 895303), (43, 478883), (47, 438127), (443, 46483), (989, 20821), (1081, 19049), (2021, 10189)]