21031017

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{5189}}^1$

素因数の和:5392

約数の個数: 16

約数和(自身を含む): 32219520

約数和(自身を除く): 11188503

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 5189, 15567, 36323, 108969, 1001477, 3004431, 7010339, 21031017]

約数ペア:

[(1, 21031017), (3, 7010339), (7, 3004431), (21, 1001477), (193, 108969), (579, 36323), (1351, 15567), (4053, 5189)]