20430081

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2333}}^1$

素因数の和:2485

約数の個数: 24

約数和(自身を含む): 33983040

約数和(自身を除く): 13552959

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2333, 2919, 6999, 8757, 16331, 20997, 48993, 146979, 324287, 972861, 2270009, 2918583, 6810027, 20430081]

約数ペア:

[(1, 20430081), (3, 6810027), (7, 2918583), (9, 2270009), (21, 972861), (63, 324287), (139, 146979), (417, 48993), (973, 20997), (1251, 16331), (2333, 8757), (2919, 6999)]