257854689

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{11903}}^1$

素因数の和:12021

約数の個数: 24

約数和(自身を含む): 389975040

約数和(自身を除く): 132120351

約数列:

[1, 3, 9, 29, 83, 87, 249, 261, 747, 2407, 7221, 11903, 21663, 35709, 107127, 345187, 987949, 1035561, 2963847, 3106683, 8891541, 28650521, 85951563, 257854689]

約数ペア:

[(1, 257854689), (3, 85951563), (9, 28650521), (29, 8891541), (83, 3106683), (87, 2963847), (249, 1035561), (261, 987949), (747, 345187), (2407, 107127), (7221, 35709), (11903, 21663)]