31123701

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11489}}^1$

素因数の和:11545

約数の個数: 24

約数和(自身を含む): 52578240

約数和(自身を除く): 21454539

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 11489, 34467, 80423, 103401, 241269, 494027, 723807, 1482081, 3458189, 4446243, 10374567, 31123701]

約数ペア:

[(1, 31123701), (3, 10374567), (7, 4446243), (9, 3458189), (21, 1482081), (43, 723807), (63, 494027), (129, 241269), (301, 103401), (387, 80423), (903, 34467), (2709, 11489)]