Can you disarm a solar’s Flying Sword?

In 5e D&D, the solar has the ability to release its sword and control it remotely. The description for it says:

Flying Sword. The solar releases its greatsword to hover magically in an unoccupied space within 5 feet of it. If the solar can see the sword, the solar can mentally command it as a bonus action to fly up to 50 feet and either make one attack against a target or return to the solar’s hands. If the hovering sword is targeted by any effect, the solar is considered to be holding it. The hovering sword falls if the solar dies .

So what if you attempted to use something like the battlemaster’s disarming strike, what would happen? I could potentially see a problem in that, for disarming strike, the target would be the solar, not the sword.