aliquotSum - nodef/extra-number GitHub Wiki
Sum all proper divisors of a number.
Similar: properDivisors, aliquotSum.
function aliquotSum(x)
// x: a number
const xnumber = require('extra-number');
xnumber.aliquotSum(6);
// → 6 (1+2+3)
xnumber.aliquotSum(1);
// → 0
xnumber.aliquotSum(0);
// → 0
xnumber.aliquotSum(-24);
// → 36 (1+2+3+4+6+8+12)