20704239

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{32401}}^1$

素因数の和:32478

約数の個数: 12

約数和(自身を含む): 30328272

約数和(自身を除く): 9624033

約数列:

[1, 3, 9, 71, 213, 639, 32401, 97203, 291609, 2300471, 6901413, 20704239]

約数ペア:

[(1, 20704239), (3, 6901413), (9, 2300471), (71, 291609), (213, 97203), (639, 32401)]