2640519

素因数分解:

$3^4\times 7^1\times {\mathrm{4657}}^1$

素因数の和:4676

約数の個数: 20

約数和(自身を含む): 4508944

約数和(自身を除く): 1868425

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 4657, 13971, 32599, 41913, 97797, 125739, 293391, 377217, 880173, 2640519]

約数ペア:

[(1, 2640519), (3, 880173), (7, 377217), (9, 293391), (21, 125739), (27, 97797), (63, 41913), (81, 32599), (189, 13971), (567, 4657)]