28689687

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{81737}}^1$

素因数の和:81759

約数の個数: 16

約数和(自身を含む): 45773280

約数和(自身を除く): 17083593

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 81737, 245211, 735633, 1062581, 2206899, 3187743, 9563229, 28689687]

約数ペア:

[(1, 28689687), (3, 9563229), (9, 3187743), (13, 2206899), (27, 1062581), (39, 735633), (117, 245211), (351, 81737)]