John Gill Commentary Genesis 46:17

"And the sons of Asher: Imnah, and Ishvah, and Ishvi, and Beriah, and Serah their sister; and the sons of Beriah: Heber, and Malchiel." — Genesis 46:17 (ASV)

And the sons of Asher
Another son of Jacob by Leah's maid Zilpah, whose sons were, Jimnah, and Ishuah, and Isui, and Beriah, and Serah their sister ;
who is called Sarah, (Numbers 26:46) , and by the Septuagint here. She seems to have been a person of some note, being so particularly remarked in both places: and the sons of Beriah, Heber and Malchiel ;
this Beriah seems to be the youngest son of Asher, and yet had two sons; who, as the Targum of Jonathan adds, went down into Egypt; he must marry, and have sons when very young; the thing is not impossible: (See Gill on Genesis 46:12);