20285781

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1\times {\mathrm{317}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 27566784

約数和(自身を除く): 7281003

約数列:

[1, 3, 83, 249, 257, 317, 771, 951, 21331, 26311, 63993, 78933, 81469, 244407, 6761927, 20285781]

約数ペア:

[(1, 20285781), (3, 6761927), (83, 244407), (249, 81469), (257, 78933), (317, 63993), (771, 26311), (951, 21331)]