18243379

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 23560704

約数和(自身を除く): 5317325

約数列:

[1, 7, 11, 47, 71, 77, 329, 497, 517, 781, 3337, 3619, 5041, 5467, 23359, 35287, 36707, 55451, 236927, 256949, 388157, 1658489, 2606197, 18243379]

約数ペア:

[(1, 18243379), (7, 2606197), (11, 1658489), (47, 388157), (71, 256949), (77, 236927), (329, 55451), (497, 36707), (517, 35287), (781, 23359), (3337, 5467), (3619, 5041)]