%0 Journal Article
%A Nguyen Xuan Tho
%T What positive integers n can be presented in the form n = (x + y + z)(1/x + 1/y + 1/z)?
%J Annales mathematicae et informaticae
%D 2021
%P 141-146
%V 54
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.33039/ami.2021.04.005/
%R 10.33039/ami.2021.04.005
%G en
%F AMI_2021_54_a11