2558727

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 3953664

約数和(自身を除く): 1394937

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 263, 423, 789, 1081, 2367, 3243, 6049, 9729, 12361, 18147, 37083, 54441, 111249, 284303, 852909, 2558727]

約数ペア:

[(1, 2558727), (3, 852909), (9, 284303), (23, 111249), (47, 54441), (69, 37083), (141, 18147), (207, 12361), (263, 9729), (423, 6049), (789, 3243), (1081, 2367)]