Equivalently , the number NUMBER@1 is equal to half the sum of all its positive divisors : -LRB- NUMBER@2 + NUMBER@3 + NUMBER@4 + NUMBER@1 -RRB- / NUMBER@3 = NUMBER@1 .

Its divisors -LRB- other than the number itself : NUMBER@1 -RRB- are NUMBER@2 , NUMBER@3 , and NUMBER@4 and NUMBER@2 + NUMBER@3 + NUMBER@4 equals NUMBER@1 .
