20952745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12289}}^1$

素因数の和:12336

約数の個数: 16

約数和(自身を含む): 28316160

約数和(自身を除く): 7363415

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12289, 61445, 135179, 380959, 675895, 1904795, 4190549, 20952745]

約数ペア:

[(1, 20952745), (5, 4190549), (11, 1904795), (31, 675895), (55, 380959), (155, 135179), (341, 61445), (1705, 12289)]