You can certainly view the imported `atop` log file on another machine that runs `atop` as `atop` run it's own binary format and each file is a self-contained statistics repository/DB on its own.
You may also see it directly from a remote machine doing:
ssh remote_machine "sudo atop -r /var/log/atop/atop_20180904"
Ultimately if you want to monitor on the log term several Unix servers, it might be more practical on the term to monitor them via SNMP with something as Cacti.