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.
网络释义
1、亏数
...deficient element 缺乏元素deficient number 亏数acid deficient 弱酸的(缺酸的)...
2、[数]亏数
...deficient element 缺乏元素deficient number 亏数acid deficient 弱酸的(缺酸的)...