object GreatestDivisor {
  def main(args: Array[String]){
    var list2 = args

    for (j <- 0 to list2.length-1) {
      if (scala.util.Try(list2(j).toInt).isFailure){
        println(list2(j) + " : the conversion is not possible")
      }
      else if (scala.util.Try(list2(j).toInt).isSuccess){
        print(list2(j).toInt + " : ")
        GetDivisor(list2(j).toInt)
      }
    }
  }

  def GetDivisor(y: Int): Unit = {
    for (i <- 1 to y){
      if (y.toFloat/(y.toFloat-i) == math.floor(y.toFloat/(y.toFloat-i))) {
        return (println(y-i))
      }
    }
  }
}