20706511

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 24427008

約数和(自身を除く): 3720497

約数列:

[1, 7, 61, 71, 427, 497, 683, 4331, 4781, 30317, 41663, 48493, 291641, 339451, 2958073, 20706511]

約数ペア:

[(1, 20706511), (7, 2958073), (61, 339451), (71, 291641), (427, 48493), (497, 41663), (683, 30317), (4331, 4781)]