Near-Zumkeller numbers
Author
Patodia, Harish
Saikia, Helen
Full text
https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/432010.22199/issn.0717-6279-4320
Abstract
A positive integer n is called a Zumkeller number if the set of all the positive divisors of n can be partitioned into two disjoint subsets, each summing to σ(n)/2. In this paper, Generalizing further, near-Zumkeller numbers and k-near-Zumkeller numbers are defined and also some results concerning these numbers are established. Relations of these numbers with practical numbers are also studied in this paper.