1631268870
domain: N
Appears in sequences
- Numbers k such that sigma(k) == 0 (mod k-6).at n=14A274558
- 3-deficient numbers with increasing abundancy: Numbers k such that sigma(m)/m < sigma(k)/k < 3 for all numbers m < k such that sigma(m)/m < 3.at n=34A307122
- Unitary barely 3-deficient numbers: numbers m such that usigma(k)/k < usigma(m)/m < 3 for all numbers k < m, where usigma is the sum of unitary divisors function (A034448).at n=15A336672