19712325

素因数分解:

$3^1\times 5^2\times {\mathrm{433}}^1\times {\mathrm{607}}^1$

素因数の和:1053

約数の個数: 24

約数和(自身を含む): 32720128

約数和(自身を除く): 13007803

約数列:

[1, 3, 5, 15, 25, 75, 433, 607, 1299, 1821, 2165, 3035, 6495, 9105, 10825, 15175, 32475, 45525, 262831, 788493, 1314155, 3942465, 6570775, 19712325]

約数ペア:

[(1, 19712325), (3, 6570775), (5, 3942465), (15, 1314155), (25, 788493), (75, 262831), (433, 45525), (607, 32475), (1299, 15175), (1821, 10825), (2165, 9105), (3035, 6495)]