20880015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107077}}^1$

素因数の和:107098

約数の個数: 16

約数和(自身を含む): 35978208

約数和(自身を除く): 15098193

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 107077, 321231, 535385, 1392001, 1606155, 4176003, 6960005, 20880015]

約数ペア:

[(1, 20880015), (3, 6960005), (5, 4176003), (13, 1606155), (15, 1392001), (39, 535385), (65, 321231), (195, 107077)]