78891489

素因数分解:

$3^4\times {\mathrm{383}}^1\times {\mathrm{2543}}^1$

素因数の和:2938

約数の個数: 20

約数和(自身を含む): 118204416

約数和(自身を除く): 39312927

約数列:

[1, 3, 9, 27, 81, 383, 1149, 2543, 3447, 7629, 10341, 22887, 31023, 68661, 205983, 973969, 2921907, 8765721, 26297163, 78891489]

約数ペア:

[(1, 78891489), (3, 26297163), (9, 8765721), (27, 2921907), (81, 973969), (383, 205983), (1149, 68661), (2543, 31023), (3447, 22887), (7629, 10341)]