n=int(input())
a=list(map(int,input().split()))

L=1000000

p=[[] for i in range(L+1)]
p[1]=[1]
for i in a:
  if i==1:
    continue
  v=i
  j=1
  while j*j<=v:
    if v%j==0:
      p[i]+=[j]
      if (v//j)>j:
        p[i]+=[v//j]
    j+=1

m=[0]*(L+1)
m[1]=1
for i in a:
  if i==1:
    continue
  m[i]=1
  v=i
  j=2
  while j*j<=v:
    if v%j==0:
      m[i]*=-1
      if v%(j*j)==0:
        m[i]=0
      while v%j==0:
        v//=j
    j+=1
  if v>1:
    m[i]*=-1

M=998244353
g=[0]*(L+1)
q=[0]*n
for i in range(n):
  f=1+g[1]
  for v in p[a[i]]:
    f-=m[v]*g[v]
  q[i]=f%M
  for v in p[a[i]]:
    g[v]+=q[i]
    g[v]%=M
print(sum(q)%M)