28505259

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1009}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 42751280

約数和(自身を除く): 14246021

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 657, 1009, 3027, 3139, 9081, 9417, 28251, 43387, 73657, 130161, 220971, 390483, 662913, 3167251, 9501753, 28505259]

約数ペア:

[(1, 28505259), (3, 9501753), (9, 3167251), (43, 662913), (73, 390483), (129, 220971), (219, 130161), (387, 73657), (657, 43387), (1009, 28251), (3027, 9417), (3139, 9081)]