20748885

素因数分解:

$3^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1951}}^1$

素因数の和:2668

約数の個数: 16

約数和(自身を含む): 33262080

約数和(自身を除く): 12513195

約数列:

[1, 3, 5, 15, 709, 1951, 2127, 3545, 5853, 9755, 10635, 29265, 1383259, 4149777, 6916295, 20748885]

約数ペア:

[(1, 20748885), (3, 6916295), (5, 4149777), (15, 1383259), (709, 29265), (1951, 10635), (2127, 9755), (3545, 5853)]