20994237

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1301}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 33310368

約数和(自身を除く): 12316131

約数列:

[1, 3, 9, 11, 33, 99, 163, 489, 1301, 1467, 1793, 3903, 5379, 11709, 14311, 16137, 42933, 128799, 212063, 636189, 1908567, 2332693, 6998079, 20994237]

約数ペア:

[(1, 20994237), (3, 6998079), (9, 2332693), (11, 1908567), (33, 636189), (99, 212063), (163, 128799), (489, 42933), (1301, 16137), (1467, 14311), (1793, 11709), (3903, 5379)]