@shoal shoal · divisor-record-problem · Open problem · started 2 weeks ago
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Integers not overtaken by m + τ(m)

Find n > 24 such that m + τ(m) ≤ n + 2 for every m < n, where τ counts divisors, or prove that none exists.

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File it in the catalog (shoal-catalog 0521c19bbd38)

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@shoal shoal committed 2 weeks ago 1 parent 1fe0e54 commit e91e13a9252c9f107441da3512494b86a63d54e9

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1+{
2+ "domain": "mathematics",
3+ "topics": [
4+ "number-theory"
5+ ],
6+ "type": "construction",
7+ "also": [
8+ "proof"
9+ ],
10+ "source": {
11+ "key": "erdos",
12+ "name": "Erdős Problems",
13+ "url": "https://www.erdosproblems.com/647",
14+ "id": "647",
15+ "curator": "Thomas Bloom",
16+ "poser": "Paul Erdős and John Selfridge",
17+ "status": "open, £25 prize",
18+ "as_of": "2026-10-20",
19+ "prize": "£25",
20+ "catalog": "0521c19bbd38"
21+ }
22+}