18766929

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 27209952

約数和(自身を除く): 8443023

約数列:

[1, 3, 17, 51, 53, 131, 159, 393, 901, 2227, 2703, 2809, 6681, 6943, 8427, 20829, 47753, 118031, 143259, 354093, 367979, 1103937, 6255643, 18766929]

約数ペア:

[(1, 18766929), (3, 6255643), (17, 1103937), (51, 367979), (53, 354093), (131, 143259), (159, 118031), (393, 47753), (901, 20829), (2227, 8427), (2703, 6943), (2809, 6681)]