28721853

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{277}}^1\times {\mathrm{281}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 42804216

約数和(自身を除く): 14082363

約数列:

[1, 3, 9, 41, 123, 277, 281, 369, 831, 843, 2493, 2529, 11357, 11521, 34071, 34563, 77837, 102213, 103689, 233511, 700533, 3191317, 9573951, 28721853]

約数ペア:

[(1, 28721853), (3, 9573951), (9, 3191317), (41, 700533), (123, 233511), (277, 103689), (281, 102213), (369, 77837), (831, 34563), (843, 34071), (2493, 11521), (2529, 11357)]