deficient number
英[dɪˈfɪʃənt ˈnʌmbə]美[dɪˈfɪʃənt ˈnʌmbɚ]
In number theory, a deficient number or defective number is a number n for which the sum of divisors σ(n)[n, n + (\log n)^2] for all sufficiently large n.Sándor et al (2006) p.
2026-07-18 21:29 浏览次数 26
In number theory, a deficient number or defective number is a number n for which the sum of divisors σ(n)[n, n + (\log n)^2] for all sufficiently large n.Sándor et al (2006) p.