Nađi zbroj svih prirodnih brojeva za koje
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Find the sum of all natural numbers that satisfy
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[lang=hr]
Nađi zbroj svih prirodnih brojeva za koje $\varphi(n) \mid n^2+3$.
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[lang=en]
Find the sum of all natural numbers that satisfy $\varphi(n) \mid n^2+3$.
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