20085247

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31531}}^1$

素因数の和:31558

約数の個数: 12

約数和(自身を含む): 25162536

約数和(自身を除く): 5077289

約数列:

[1, 7, 13, 49, 91, 637, 31531, 220717, 409903, 1545019, 2869321, 20085247]

約数ペア:

[(1, 20085247), (7, 2869321), (13, 1545019), (49, 409903), (91, 220717), (637, 31531)]