20586465

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10639}}^1$

素因数の和:10693

約数の個数: 24

約数和(自身を含む): 36516480

約数和(自身を除く): 15930015

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10639, 31917, 53195, 95751, 159585, 457477, 478755, 1372431, 2287385, 4117293, 6862155, 20586465]

約数ペア:

[(1, 20586465), (3, 6862155), (5, 4117293), (9, 2287385), (15, 1372431), (43, 478755), (45, 457477), (129, 159585), (215, 95751), (387, 53195), (645, 31917), (1935, 10639)]