请输入您要查询的英文单词：
单词
perfect number
释义
perfect number
noun
:
an integer (as 6) the sum of whose divisors including 1 but excluding itself is equal to itself
< 28, which . 1 + 2 + 4 + 7 + 14, is a
perfect number
>
— compare imperfect number
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in the long run
in the lump
in the lurch
in the mainour
in the market
in the matter of
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in the middle
in the middle of
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in the money
in the neck
in the negative
in the panel
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in the pink of condition
in the pipeline
in the raw
in there
in the right
in the right of
in the rough
in the round
in the running
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更新时间：2024/11/10 23:17:54