Answer
378 is not perfect because:
1 + 2 + 3 + 6 + 7 + 9 + 14 + 18 + 21 + 27 + 42 + 54 + 63 + 126 + 189 ≠ 378
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Answer
378 is not perfect because:
1 + 2 + 3 + 6 + 7 + 9 + 14 + 18 + 21 + 27 + 42 + 54 + 63 + 126 + 189 ≠ 378