Values of the Carmichael Function Equal to a Sum of Two Squares

In this note, we determine the order of growth of the number of positive integers n \le x such that l(n) is a sum of two square numbers, where l(n) is the Carmichael function.

Values of the Carmichael Function Equal to a Sum of Two Squares

In this note, we determine the order of growth of the number of positive integers n \le x such that l(n) is a sum of two square numbers, where l(n) is the Carmichael function.

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