20297151

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3011}}^1$

素因数の和:3131

約数の個数: 24

約数和(自身を含む): 33830784

約数和(自身を除く): 13533633

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 3011, 6741, 9033, 21077, 27099, 63231, 189693, 322177, 966531, 2255239, 2899593, 6765717, 20297151]

約数ペア:

[(1, 20297151), (3, 6765717), (7, 2899593), (9, 2255239), (21, 966531), (63, 322177), (107, 189693), (321, 63231), (749, 27099), (963, 21077), (2247, 9033), (3011, 6741)]