Divisor function mathematics number (2 résultats)

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. In mathematicsan aliquot sequence is a recursive sequence in which each term is thesum of the proper divisors of the previous term. The aliquot sequencestarting with a positive integer k can be defined formally in terms ofthe sum-of-divisors function ¿1 in the following way: s0 = k sn =¿1(sn¿1) ¿ sn¿1.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. In mathematicsand specifically in number theory, a divisor function is an arithmeticalfunction related to the divisors of an integer. When referred to as thedivisor function, it counts the number of divisors of an integer. Itappears in a number of remarkable identities, including relationships onthe Riemann zeta function and the Eisenstein series of modular forms.Divisor functions were studied by Ramanujan, who gave a number ofimportant congruences and identities.…