18281493

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 27355328

約数和(自身を除く): 9073835

約数列:

[1, 3, 9, 43, 97, 129, 291, 387, 487, 873, 1461, 4171, 4383, 12513, 20941, 37539, 47239, 62823, 141717, 188469, 425151, 2031277, 6093831, 18281493]

約数ペア:

[(1, 18281493), (3, 6093831), (9, 2031277), (43, 425151), (97, 188469), (129, 141717), (291, 62823), (387, 47239), (487, 37539), (873, 20941), (1461, 12513), (4171, 4383)]