local int = require "int"
local fmt = require "fmt"

for i = 1, 10 do
    fmt.print("%2d -> %s", i, fmt.swrite(int.divisors(i, true)))
end

print("\nThe number in the range {1, 20,000} with the most proper divisors is:")
local number = 1
local max_divs = 0
for i = 2, 20_000 do
    local [divs, _] = int.divstat(i, true)
    if divs > max_divs then
        number = i
        max_divs = divs
    end
end
print($"{fmt.int(number)} which has {max_divs} proper divisors.")