## https://yukicoder.me/problems/no/2075

MOD = 998244353

def main():
    N = int(input())
    A = list(map(int, input().split()))

    # osa-k法による素因数となる素数を列挙
    max_a = max(A)
    if max_a == 1:
        print(N)
        return

    primes = [p for p in range(max_a + 1)]
    for p in range(2, max_a + 1):
        if primes[p] != p:
            continue

        x = 2 * p
        while x <= max_a:
            primes[x] = min(primes[x], p)
            x += p
    
    p_divisors = []
    for i in range(N):
        a = A[i]
        p_list = []
        while primes[a] != 1:
            if len(p_list) == 0 or p_list[-1] != primes[a]:
                p_list.append(primes[a])
            a //= primes[a]

        p_d_len = len(p_list)
        array = []
        for p_bit in range(1, 2 ** p_d_len):
            bit_count = 0
            a = 1
            for j in range(p_d_len):
                if p_bit & (1 << j) > 0:
                    a *= p_list[j]
                    bit_count += 1
            array.append((a, bit_count))
        p_divisors.append(array)

    # dpを使う
    primes_sum = [0] * (max_a + 1)
    answer = 0
    for i in range(N):
        ans = 1
        for a, bit_count in p_divisors[i]:
            ans += (primes_sum[a] * pow(-1, bit_count + 1, MOD)) % MOD
            ans %= MOD

        answer += ans
        answer %= MOD

        for a, _ in p_divisors[i]:
            primes_sum[a] += ans
            primes_sum[a] %= MOD

    print(answer)

if __name__ == "__main__":
    main()