208577907

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{7591}}^1$

素因数の和:7711

約数の個数: 24

約数和(自身を含む): 312668928

約数和(自身を除く): 104091021

約数列:

[1, 3, 9, 43, 71, 129, 213, 387, 639, 3053, 7591, 9159, 22773, 27477, 68319, 326413, 538961, 979239, 1616883, 2937717, 4850649, 23175323, 69525969, 208577907]

約数ペア:

[(1, 208577907), (3, 69525969), (9, 23175323), (43, 4850649), (71, 2937717), (129, 1616883), (213, 979239), (387, 538961), (639, 326413), (3053, 68319), (7591, 27477), (9159, 22773)]