18550707

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2447}}^1$

素因数の和:2495

約数の個数: 24

約数和(自身を含む): 29846016

約数和(自身を除く): 11295309

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2447, 2527, 7341, 7581, 17129, 46493, 51387, 139479, 325451, 883367, 976353, 2650101, 6183569, 18550707]

約数ペア:

[(1, 18550707), (3, 6183569), (7, 2650101), (19, 976353), (21, 883367), (57, 325451), (133, 139479), (361, 51387), (399, 46493), (1083, 17129), (2447, 7581), (2527, 7341)]