20793381

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{23027}}^1$

素因数の和:23080

約数の個数: 16

約数和(自身を含む): 32423424

約数和(自身を除く): 11630043

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 23027, 69081, 161189, 483567, 990161, 2970483, 6931127, 20793381]

約数ペア:

[(1, 20793381), (3, 6931127), (7, 2970483), (21, 990161), (43, 483567), (129, 161189), (301, 69081), (903, 23027)]