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應該是6.1+2+3=6,(又1*2*3=6,)故六六“大”順.在古希臘像6,28,這樣的數稱為完全數.這樣的數是所有因數(除了本身)的和,又有哪些數可以像6或28這樣“完全”呢?我覺得6比3的21次方容量更大,更完全.3的21次方僅僅是…
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