20807003231

素因数分解:

$7^3\times {\mathrm{157}}^1\times {\mathrm{386381}}^1$

素因数の和:386559

約数の個数: 16

約数和(自身を含む): 24419342400

約数和(自身を除く): 3612339169

約数列:

[1, 7, 49, 157, 343, 1099, 7693, 53851, 386381, 2704667, 18932669, 60661817, 132528683, 424632719, 2972429033, 20807003231]

約数ペア:

[(1, 20807003231), (7, 2972429033), (49, 424632719), (157, 132528683), (343, 60661817), (1099, 18932669), (7693, 2704667), (53851, 386381)]