Odd 4-Perfect Numbers Exactly Divisible by $$3^2$$32
Crossref DOI link: https://doi.org/10.1007/s40840-018-0694-x
Published Online: 2018-10-31
Published Print: 2020-01
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Okabe, Yuta
Ohtani, Sachiko http://orcid.org/0000-0002-9555-8482
Text and Data Mining valid from 2018-10-31
Article History
Received: 9 May 2018
Revised: 9 October 2018
First Online: 31 October 2018