On integers n for which σ(2n + 1)≥σ(2n)
| Autor: | Mits Kobayashi, Tim Trudgian |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of Number Theory. 215:138-148 |
| ISSN: | 0022-314X |
| DOI: | 10.1016/j.jnt.2020.02.007 |
| Popis: | We show that the natural density of positive integers n for which σ ( 2 n + 1 ) ≥ σ ( 2 n ) is between 0.053 and 0.055. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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