18031489

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 21116160

約数和(自身を除く): 3084671

約数列:

[1, 7, 89, 103, 281, 623, 721, 1967, 9167, 25009, 28943, 64169, 175063, 202601, 2575927, 18031489]

約数ペア:

[(1, 18031489), (7, 2575927), (89, 202601), (103, 175063), (281, 64169), (623, 28943), (721, 25009), (1967, 9167)]