20779965

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10739}}^1$

素因数の和:10793

約数の個数: 24

約数和(自身を含む): 36859680

約数和(自身を除く): 16079715

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10739, 32217, 53695, 96651, 161085, 461777, 483255, 1385331, 2308885, 4155993, 6926655, 20779965]

約数ペア:

[(1, 20779965), (3, 6926655), (5, 4155993), (9, 2308885), (15, 1385331), (43, 483255), (45, 461777), (129, 161085), (215, 96651), (387, 53695), (645, 32217), (1935, 10739)]