20809863361

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{6962149}}^1$

素因数の和:6962224

約数の個数: 12

約数和(自身を含む): 24604238100

約数和(自身を除く): 3794374739

約数列:

[1, 7, 49, 61, 427, 2989, 6962149, 48735043, 341145301, 424691089, 2972837623, 20809863361]

約数ペア:

[(1, 20809863361), (7, 2972837623), (49, 424691089), (61, 341145301), (427, 48735043), (2989, 6962149)]