All three factors have positive relation with SIP returns. With increment in any of factor, SIP return will be higher comparatively.
You can fully control amount and investment period. While you can not control CAGR. The only thing you can do with CAGR is wise mutual fund selection that have potential for more growth.
Larger the amount investment, larger will be the return. But return from larger amount can not beat return with larger investment period.
If you invest small amount, let’s say 1000 rupees per month for long term, let’s say 30 years. If you achieve 13% CAGR, then your gain will be 40.6 lacks against the investment of 3.6 lacks.
Use SIP Calculator to do the math.