20909814

素因数分解:

$2^1\times 3^1\times {\mathrm{521}}^1\times {\mathrm{6689}}^1$

素因数の和:7215

約数の個数: 16

約数和(自身を含む): 41906160

約数和(自身を除く): 20996346

約数列:

[1, 2, 3, 6, 521, 1042, 1563, 3126, 6689, 13378, 20067, 40134, 3484969, 6969938, 10454907, 20909814]

約数ペア:

[(1, 20909814), (2, 10454907), (3, 6969938), (6, 3484969), (521, 40134), (1042, 20067), (1563, 13378), (3126, 6689)]