20765655

素因数分解:

$3^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{811}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 36101520

約数和(自身を除く): 15335865

約数列:

[1, 3, 5, 9, 15, 45, 569, 811, 1707, 2433, 2845, 4055, 5121, 7299, 8535, 12165, 25605, 36495, 461459, 1384377, 2307295, 4153131, 6921885, 20765655]

約数ペア:

[(1, 20765655), (3, 6921885), (5, 4153131), (9, 2307295), (15, 1384377), (45, 461459), (569, 36495), (811, 25605), (1707, 12165), (2433, 8535), (2845, 7299), (4055, 5121)]