N,K,M = map(int,input().split())
P = 10 ** 9 + 7

now = pow(N,N-1,P)
inv = pow(N,P-2,P)
inv2 = pow(N-1,P-2,P)
ans = now
for i in range(2,N+1):
    now = now * inv * (N-i + 1) % P
    if K % i == 0:
        ans = (ans + now) % P
hoka = (pow(N,N,P) - ans) * inv2 % P
if M == 1:
    print(ans)
else:
    print(hoka)