OPINION: Yep, the number 19 is symbolic.
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19. That number 19 always reminds me of "The Magnificent 19"
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I will surely cast him [the unbeliever] into the Fire. Would that you know what the fire is like! It leaves nothing, it spares no one; it burns the skins of men. It is gaurded by 19 keepers.
We have appointed none but angels to gaurd the Fire, and made their number a subject for dispute among the unbelievers, so that those to whom the Scriptures were given may be convinced and the true believers strengthened in their faith.
Quran, sura 74:31