Answer
918 is not perfect because:
1 + 2 + 3 + 6 + 9 + 17 + 18 + 27 + 34 + 51 + 54 + 102 + 153 + 306 + 459 ≠ 918
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Answer
918 is not perfect because:
1 + 2 + 3 + 6 + 9 + 17 + 18 + 27 + 34 + 51 + 54 + 102 + 153 + 306 + 459 ≠ 918