Sequence nth number with exactly n divisors

func f(n {.is_prime}) {
    n.prime**(n-1)
}

func f(n) {
    n.th { .sigma0 == n }
}

say 20.of { f(_+1) }

Output:

[1, 3, 25, 14, 14641, 44, 24137569, 70, 1089, 405, 819628286980801, 160, 22563490300366186081, 2752, 9801, 462, 21559177407076402401757871041, 1044, 740195513856780056217081017732809, 1520]