Kotlin Program:

Example:

import java.util.Scanner
fun main(args: Array<String>) {
  
  print("Enter your number :")
  val userInput = Scanner(System.`in`)
  var num:Int = userInput.nextInt()

  println("Factors of $num")
  for(i in 1..num/2) {
    if(num % i==0)
      print("$i ")
  }
  print(num)
}

Output:

  Enter your number : 18
  Factors of 18 : 1 2 3 6 9 18

You should know first :

Factor of N : All numbers which perfectly divides N

Main Logic :

for(i in 1..num/2) {
  if(num % i==0)  // Checking for the factor
    print("$i ")
}
print(num)

We are running the loop num/2 Since, any number can have only factors under its half, except itself