URL：https://c8.alamy.com/comp/2G6RFRG/number-17-seventeen-symbol-sign-in-circle-17th-seventeenth-count-hashtag-icon-simple-flat-design-vector-illustration-white-with-shadow-on-blue-back-2G6RFRG.jpg
掲載元：https://ar.inspiredpencil.com/pictures-2023/number-17
