20416239

素因数分解:

$3^3\times {\mathrm{163}}^1\times {\mathrm{4639}}^1$

素因数の和:4811

約数の個数: 16

約数和(自身を含む): 30438400

約数和(自身を除く): 10022161

約数列:

[1, 3, 9, 27, 163, 489, 1467, 4401, 4639, 13917, 41751, 125253, 756157, 2268471, 6805413, 20416239]

約数ペア:

[(1, 20416239), (3, 6805413), (9, 2268471), (27, 756157), (163, 125253), (489, 41751), (1467, 13917), (4401, 4639)]