2021786781

素因数分解:

$3^1\times 7^1\times {\mathrm{1409}}^1\times {\mathrm{68329}}^1$

素因数の和:69748

約数の個数: 16

約数和(自身を含む): 3083049600

約数和(自身を除く): 1061262819

約数列:

[1, 3, 7, 21, 1409, 4227, 9863, 29589, 68329, 204987, 478303, 1434909, 96275561, 288826683, 673928927, 2021786781]

約数ペア:

[(1, 2021786781), (3, 673928927), (7, 288826683), (21, 96275561), (1409, 1434909), (4227, 478303), (9863, 204987), (29589, 68329)]