81285127.000000000

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{2208259}}^1$

素因数の和:2208273

約数の個数: 24

約数和(自身を含む): 494650240

約数和(自身を除く): 309156484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 2208259, 4416518, 6624777, 8833036, 13249554, 15457813, 26499108, 30915626, 46373439, 61831252, 92746878, 185493756]

約数ペア:

[(1, 185493756), (2, 92746878), (3, 61831252), (4, 46373439), (6, 30915626), (7, 26499108), (12, 15457813), (14, 13249554), (21, 8833036), (28, 6624777), (42, 4416518), (84, 2208259)]