20430207

素因数分解:

$3^2\times 7^2\times {\mathrm{46327}}^1$

素因数の和:46347

約数の個数: 18

約数和(自身を含む): 34329048

約数和(自身を除く): 13898841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46327, 138981, 324289, 416943, 972867, 2270023, 2918601, 6810069, 20430207]

約数ペア:

[(1, 20430207), (3, 6810069), (7, 2918601), (9, 2270023), (21, 972867), (49, 416943), (63, 324289), (147, 138981), (441, 46327)]