689800959

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{1987}}^1\times {\mathrm{2269}}^1$

素因数の和:4279

約数の個数: 24

約数和(自身を含む): 1055985840

約数和(自身を除く): 366184881

約数列:

[1, 3, 9, 17, 51, 153, 1987, 2269, 5961, 6807, 17883, 20421, 33779, 38573, 101337, 115719, 304011, 347157, 4508503, 13525509, 40576527, 76644551, 229933653, 689800959]

約数ペア:

[(1, 689800959), (3, 229933653), (9, 76644551), (17, 40576527), (51, 13525509), (153, 4508503), (1987, 347157), (2269, 304011), (5961, 115719), (6807, 101337), (17883, 38573), (20421, 33779)]