Question

Calculați suma divizorilor intregi ai numarului - 24
dau coroana

Answer 1

D₂₄ = {-24, -12, -8, -6, -4, -3, -2, -1, 1, 2, 3, 4, 6, 12, 24}

Suma acestora: -24+(-12)+(-8)+(-6)+(-3)+(-2)+(-1)+1+2+3+4+6+8+12+24 = 0

Answer 2

$\it D_{(-24)}=\{\pm1,\ \pm2,\ \pm3,\ \pm4,\ \pm6,\ \pm8,\ \pm12,\ \pm24\}\\ \\ Suma\ algebric\breve a\ cerut\breve a\ este\ egal\breve a\ cu\ 0,\ deoarece\ avem\ perechi\ de\ numere\ opuse.$