/*117 - ID вашего товара*/
$productID = 117;
$res = CCatalogSKU::getOffersList($productID, 0, array(), array(), array());
foreach($res[$productID] as $value){
$arSelect = Array("ID", "IBLOCK_ID", "NAME", "DATE_ACTIVE_FROM","PROPERTY_*");
$arFilter = Array("IBLOCK_ID"=>IntVal($value['IBLOCK_ID']),'ID'=>$value['ID'], "ACTIVE_DATE"=>"Y", "ACTIVE"=>"Y");
$res = CIBlockElement::GetList(Array(), $arFilter, false, Array(), $arSelect);
while($ob = $res->GetNextElement()){
$arProps = $ob->GetProperties();
print_r($arProps);
}
}
Попробуйте так