20542895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2141}}^1$

素因数の和:2266

約数の個数: 16

約数和(自身を含む): 26218080

約数和(自身を除く): 5675185

約数列:

[1, 5, 19, 95, 101, 505, 1919, 2141, 9595, 10705, 40679, 203395, 216241, 1081205, 4108579, 20542895]

約数ペア:

[(1, 20542895), (5, 4108579), (19, 1081205), (95, 216241), (101, 203395), (505, 40679), (1919, 10705), (2141, 9595)]