21006987205

素因数分解:

$5^1\times {\mathrm{1249}}^1\times {\mathrm{3363809}}^1$

素因数の和:3365063

約数の個数: 8

約数和(自身を含む): 25228575000

約数和(自身を除く): 4221587795

約数列:

[1, 5, 1249, 6245, 3363809, 16819045, 4201397441, 21006987205]

約数ペア:

[(1, 21006987205), (5, 4201397441), (1249, 16819045), (6245, 3363809)]