20005887

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{937}}^1$

素因数の和:1598

約数の個数: 16

約数和(自身を含む): 29175552

約数和(自身を除く): 9169665

約数列:

[1, 3, 11, 33, 647, 937, 1941, 2811, 7117, 10307, 21351, 30921, 606239, 1818717, 6668629, 20005887]

約数ペア:

[(1, 20005887), (3, 6668629), (11, 1818717), (33, 606239), (647, 30921), (937, 21351), (1941, 10307), (2811, 7117)]