21140999

素因数分解:

${\mathrm{11}}^2\times {\mathrm{379}}^1\times {\mathrm{461}}^1$

素因数の和:862

約数の個数: 12

約数和(自身を含む): 23349480

約数和(自身を除く): 2208481

約数列:

[1, 11, 121, 379, 461, 4169, 5071, 45859, 55781, 174719, 1921909, 21140999]

約数ペア:

[(1, 21140999), (11, 1921909), (121, 174719), (379, 55781), (461, 45859), (4169, 5071)]