20403381

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{269}}^1$

素因数の和:596

約数の個数: 16

約数和(自身を含む): 27656640

約数和(自身を除く): 7253259

約数列:

[1, 3, 131, 193, 269, 393, 579, 807, 25283, 35239, 51917, 75849, 105717, 155751, 6801127, 20403381]

約数ペア:

[(1, 20403381), (3, 6801127), (131, 155751), (193, 105717), (269, 75849), (393, 51917), (579, 35239), (807, 25283)]