Carl Severin Wigert
Encyclopedia
Carl Severin Wigert was a Swedish mathematician who introduced Stieltjes–Wigert polynomials and worked on the divisor function
Divisor function
In mathematics, and specifically in number theory, a divisor function is an arithmetical function related to the divisors of an integer. When referred to as the divisor function, it counts the number of divisors of an integer. It appears in a number of remarkable identities, including relationships...

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