51785721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{887}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 80808000

約数和(自身を除く): 29022279

約数列:

[1, 3, 9, 13, 39, 117, 499, 887, 1497, 2661, 4491, 6487, 7983, 11531, 19461, 34593, 58383, 103779, 442613, 1327839, 3983517, 5753969, 17261907, 51785721]

約数ペア:

[(1, 51785721), (3, 17261907), (9, 5753969), (13, 3983517), (39, 1327839), (117, 442613), (499, 103779), (887, 58383), (1497, 34593), (2661, 19461), (4491, 11531), (6487, 7983)]