20002191

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8537}}^1$

素因数の和:8622

約数の個数: 16

約数和(自身を含む): 29507328

約数和(自身を除く): 9505137

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 8537, 25611, 93907, 281721, 606127, 1818381, 6667397, 20002191]

約数ペア:

[(1, 20002191), (3, 6667397), (11, 1818381), (33, 606127), (71, 281721), (213, 93907), (781, 25611), (2343, 8537)]