20581085

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30949}}^1$

素因数の和:30980

約数の個数: 16

約数和(自身を含む): 29712000

約数和(自身を除く): 9130915

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 30949, 154745, 216643, 588031, 1083215, 2940155, 4116217, 20581085]

約数ペア:

[(1, 20581085), (5, 4116217), (7, 2940155), (19, 1083215), (35, 588031), (95, 216643), (133, 154745), (665, 30949)]