#!/usr/bin/env perl

use strict;
use warnings;

my $n = <>; chomp $n;
my $c = 0;
my %h;
for (my $i = 1; $i < sqrt($n) + 1; $i++) {
  next if $n < $i;
  if ($n % $i == 0) {
    my $m = $n / $i;
    $h{"$m$i"} = 1;
    $h{"$i$m"} = 1;
  }
}
print int(keys %h);