20517489

素因数分解:

$3^3\times {\mathrm{811}}^1\times {\mathrm{937}}^1$

素因数の和:1757

約数の個数: 16

約数和(自身を含む): 30466240

約数和(自身を除く): 9948751

約数列:

[1, 3, 9, 27, 811, 937, 2433, 2811, 7299, 8433, 21897, 25299, 759907, 2279721, 6839163, 20517489]

約数ペア:

[(1, 20517489), (3, 6839163), (9, 2279721), (27, 759907), (811, 25299), (937, 21897), (2433, 8433), (2811, 7299)]