I need a link to download one of these two compilers:
Emphasis on the 2017 version. Does anyone have download links to these? Also, are licenses required for these?
Yes, licenses are required. You can download an evaluation copy or purchase a license from here: https://software.intel.com/en-us/try-buy-tools
The version you mentioned is slightly older than current release so you can use these instructions (below) to obtain the older version.
You can find instructions for downloading a previous version of software on the following Web site: http://software.intel.com/en-us/articles/older-version-installation
Intel(R) Developer Zone support