properDivisors

List all divisors of a number, except itself.

Similar: properDivisors, aliquotSum.
Similar: properDivisors, primeFactors, primeExponentials, isPrime.

function properDivisors(x)
// x: a number

const xnumber = require('extra-number');


xnumber.properDivisors(6);
// → [1, 2, 3]

xnumber.properDivisors(1);
// → []

xnumber.properDivisors(0);
// → []

xnumber.properDivisors(-24);
// → [1, 2, 3, 4, 6, 8, 12]

References

• Proper Divisor: Wolfram Mathworld