28528269

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{123499}}^1$

素因数の和:123520

約数の個数: 16

約数和(自身を含む): 47424000

約数和(自身を除く): 18895731

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 123499, 370497, 864493, 1358489, 2593479, 4075467, 9509423, 28528269]

約数ペア:

[(1, 28528269), (3, 9509423), (7, 4075467), (11, 2593479), (21, 1358489), (33, 864493), (77, 370497), (231, 123499)]