Friendly Numbers - Javascript

friendlyNumbers.js

// Helpers
const findDivisors = number => {
  const divisors = [1];
  for (let i = 2; i < number - 1; ++i) if (number % i === 0) divisors.push(i);
  return divisors;
};
const sum = (...numbers) => numbers.reduce((a, b) => a + b);

// Friendly Numbers
const areFriendlyNumbers = (number, number2) =>
  sum(...findDivisors(number)) === number2 && sum(...findDivisors(number2)) === number;

const checkFriendlyNumbers = (number, number2) =>
  areFriendlyNumbers(number, number2)
    ? console.log(`${number} and ${number2} are friendly numbers.💚`)
    : console.log(`${number} and ${number2} are friendly numbers.❌`);

// Test
const [number, number2] = [97041735, 97945785];
checkFriendlyNumbers(number, number2);