20427841

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{701}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 24530688

約数和(自身を除く): 4102847

約数列:

[1, 7, 23, 161, 181, 701, 1267, 4163, 4907, 16123, 29141, 112861, 126881, 888167, 2918263, 20427841]

約数ペア:

[(1, 20427841), (7, 2918263), (23, 888167), (161, 126881), (181, 112861), (701, 29141), (1267, 16123), (4163, 4907)]