Some characterizations on odd deficient-perfect numbers
In order to study the existence of odd-deficient perfect numbers with five different prime fac-tors,the problem whether odd positive integer n with five different prime factors satisfy the definition of the odd deficient perfect number is discussed by using the elementary method.Several conclusions indica-ting that there are three classes of odd positive integers n with five different prime factors are not odd defi-cient perfect number.
deficient-perfect numberodd deficient perfect numberexistencearithmetical function
万方数据
维普
