18797889

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^2\times {\mathrm{113}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 27978336

約数和(自身を除く): 9180447

約数列:

[1, 3, 11, 33, 71, 113, 213, 339, 781, 1243, 2343, 3729, 5041, 8023, 15123, 24069, 55451, 88253, 166353, 264759, 569633, 1708899, 6265963, 18797889]

約数ペア:

[(1, 18797889), (3, 6265963), (11, 1708899), (33, 569633), (71, 264759), (113, 166353), (213, 88253), (339, 55451), (781, 24069), (1243, 15123), (2343, 8023), (3729, 5041)]