21144849

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{3931}}^1$

素因数の和:4108

約数の個数: 16

約数和(自身を含む): 30952704

約数和(自身を除く): 9807855

約数列:

[1, 3, 11, 33, 163, 489, 1793, 3931, 5379, 11793, 43241, 129723, 640753, 1922259, 7048283, 21144849]

約数ペア:

[(1, 21144849), (3, 7048283), (11, 1922259), (33, 640753), (163, 129723), (489, 43241), (1793, 11793), (3931, 5379)]