18821121

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{3499}}^1$

素因数の和:3676

約数の個数: 16

約数和(自身を含む): 27552000

約数和(自身を除く): 8730879

約数列:

[1, 3, 11, 33, 163, 489, 1793, 3499, 5379, 10497, 38489, 115467, 570337, 1711011, 6273707, 18821121]

約数ペア:

[(1, 18821121), (3, 6273707), (11, 1711011), (33, 570337), (163, 115467), (489, 38489), (1793, 10497), (3499, 5379)]