Divisors[n] gives a list of the integers that divide n.
Exp
(Built-in Mathematica Symbol) Exp[z] gives the exponential of z.
FactorSquareFree[poly] pulls out any multiple factors in a polynomial.
HypergeometricPFQRegularized[{a_1, ..., a_p}, {b_1, ..., b_q}, z] is the regularized generalized hypergeometric function \[Null]_p F_q (a; b; z)/(\[CapitalGamma](b_1) ... ...
IntegerExponent[n, b] gives the highest power of b that divides n.
KelvinBei[z] gives the Kelvin function bei(z).KelvinBei[n, z] gives the Kelvin function bei_n (z).
KelvinKei[z] gives the Kelvin function kei(z).KelvinKei[n, z] gives the Kelvin function kei_n (z).
KelvinKer[z] gives the Kelvin function ker(z).KelvinKer[n, z] gives the Kelvin function ker_n (z).
Lighter
(Built-in Mathematica Symbol) Lighter[color] represents a lighter version of the specified color. Lighter[color, f] represents a version of the specified color lightened by a fraction f. Lighter[image, ...
LogBarnesG[z] gives the logarithm of the Barnes G-function logG(z).