28217571

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{1723}}^1$

素因数の和:1882

約数の個数: 16

約数和(自身を含む): 38727936

約数和(自身を除く): 10510365

約数列:

[1, 3, 53, 103, 159, 309, 1723, 5169, 5459, 16377, 91319, 177469, 273957, 532407, 9405857, 28217571]

約数ペア:

[(1, 28217571), (3, 9405857), (53, 532407), (103, 273957), (159, 177469), (309, 91319), (1723, 16377), (5169, 5459)]