20512222101

素因数分解:

$3^2\times 7^1\times {\mathrm{1721}}^1\times {\mathrm{189187}}^1$

素因数の和:190921

約数の個数: 24

約数和(自身を含む): 33881300544

約数和(自身を除く): 13369078443

約数列:

[1, 3, 7, 9, 21, 63, 1721, 5163, 12047, 15489, 36141, 108423, 189187, 567561, 1324309, 1702683, 3972927, 11918781, 325590827, 976772481, 2279135789, 2930317443, 6837407367, 20512222101]

約数ペア:

[(1, 20512222101), (3, 6837407367), (7, 2930317443), (9, 2279135789), (21, 976772481), (63, 325590827), (1721, 11918781), (5163, 3972927), (12047, 1702683), (15489, 1324309), (36141, 567561), (108423, 189187)]