28199709

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{44131}}^1$

素因数の和:44208

約数の個数: 12

約数和(自身を含む): 41307552

約数和(自身を除く): 13107843

約数列:

[1, 3, 9, 71, 213, 639, 44131, 132393, 397179, 3133301, 9399903, 28199709]

約数ペア:

[(1, 28199709), (3, 9399903), (9, 3133301), (71, 397179), (213, 132393), (639, 44131)]