20005587

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3083}}^1$

素因数の和:3199

約数の個数: 24

約数和(自身を含む): 33356544

約数和(自身を除く): 13350957

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 3083, 6489, 9249, 21581, 27747, 64743, 194229, 317549, 952647, 2222843, 2857941, 6668529, 20005587]

約数ペア:

[(1, 20005587), (3, 6668529), (7, 2857941), (9, 2222843), (21, 952647), (63, 317549), (103, 194229), (309, 64743), (721, 27747), (927, 21581), (2163, 9249), (3083, 6489)]