18866781

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1069}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 28543320

約数和(自身を除く): 9676539

約数列:

[1, 3, 9, 37, 53, 111, 159, 333, 477, 1069, 1961, 3207, 5883, 9621, 17649, 39553, 56657, 118659, 169971, 355977, 509913, 2096309, 6288927, 18866781]

約数ペア:

[(1, 18866781), (3, 6288927), (9, 2096309), (37, 509913), (53, 355977), (111, 169971), (159, 118659), (333, 56657), (477, 39553), (1069, 17649), (1961, 9621), (3207, 5883)]