@article{JTNB_2009__21_3_695_0,
     author = {Florian Luca and Ravindranathan Thangadurai},
     title = {On an arithmetic function considered by {Pillai}},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {695--701},
     publisher = {Universit\'e Bordeaux 1},
     volume = {21},
     number = {3},
     year = {2009},
     doi = {10.5802/jtnb.695},
     mrnumber = {2605540},
     zbl = {1201.11092},
     language = {en},
     url = {https://jtnb.centre-mersenne.org/articles/10.5802/jtnb.695/}
}