212892009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{90863}}^1$

素因数の和:90948

約数の個数: 16

約数和(自身を含む): 314025984

約数和(自身を除く): 101133975

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 90863, 272589, 999493, 2998479, 6451273, 19353819, 70964003, 212892009]

約数ペア:

[(1, 212892009), (3, 70964003), (11, 19353819), (33, 6451273), (71, 2998479), (213, 999493), (781, 272589), (2343, 90863)]