%0 Journal Article %A Suryanarayana, D. %T Two arithmetic functions and asymptotic densities of related sets %J Portugaliae mathematica %D 1972 %P 1-11 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1972__31_1_115158/ %G en %F PORMA_1972__31_1_115158