Answer
858 is not perfect because:
1 + 2 + 3 + 6 + 11 + 13 + 22 + 26 + 33 + 39 + 66 + 78 + 143 + 286 + 429 ≠ 858
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Answer
858 is not perfect because:
1 + 2 + 3 + 6 + 11 + 13 + 22 + 26 + 33 + 39 + 66 + 78 + 143 + 286 + 429 ≠ 858