You have a lonely male papaya plant. Male papaya flowers are lovely and fragrant, and come in multiples on long stalks. The female flowers are much larger, and singular, with hardly any stem, right on the trunk of the plant. It sounds like you need a female plant for those male flowers to pollinate.
Or if you live somewhere that papayas are commonly grown, look at your local nurseries for a cultivar called 'Red Lady' which is, shall we say, bisexual. It produces flowers with both male and female parts, and self-pollinates so you only need one to get fruit. It is commonly available here, at places like the big box stores.