20297305

素因数分解:

$5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1889}}^1$

素因数の和:2208

約数の個数: 16

約数和(自身を含む): 27941760

約数和(自身を除く): 7644455

約数列:

[1, 5, 7, 35, 307, 1535, 1889, 2149, 9445, 10745, 13223, 66115, 579923, 2899615, 4059461, 20297305]

約数ペア:

[(1, 20297305), (5, 4059461), (7, 2899615), (35, 579923), (307, 66115), (1535, 13223), (1889, 10745), (2149, 9445)]