Different values zabbix_get and zabbix_agent

[lknsfos]

Hi! I have an issue with the zabbix values. I tried to collect info about volume size, but the values on zabbix agent and zabbix server are absolutely mismatch.
I installed zabbix_get tool to the agent side and I also receiving a wrong values via zabbix_get. I tried to receive this data from another agent, also receive wrong values, zabbix agent shows me right values, for example:

[root@gw121 ~]# zabbix_agent2 -t vfs.fs.size[/ourwork,total]
vfs.fs.size[/ourwork,total] [s|17179869184000]
[root@gw121 ~]# zabbix_get -s 127.0.0.1 -k vfs.fs.size[/ourwork,total]
161061273600

I thought that it connected with the variable size, but another instance, with the same zabbix versions (7.0.7) and the similar values, works fine:

11:16 [root@svc053 project]$ zabbix_agent2 -t vfs.fs.size[/project,total]
vfs.fs.size[/project,total] [s|17540901240832]
11:16 [root@svc053 project]$ zabbix_get -s 127.0.0.1 -k vfs.fs.size[/project,total]
17540901240832

The zabbix agent version is the latest, fs is shared nfs. df shows real values.
Please advice, what is it can be?