18494217

素因数分解:

$3^3\times 7^3\times {\mathrm{1997}}^1$

素因数の和:2027

約数の個数: 32

約数和(自身を含む): 31968000

約数和(自身を除く): 13473783

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 1997, 3087, 5991, 9261, 13979, 17973, 41937, 53919, 97853, 125811, 293559, 377433, 684971, 880677, 2054913, 2642031, 6164739, 18494217]

約数ペア:

[(1, 18494217), (3, 6164739), (7, 2642031), (9, 2054913), (21, 880677), (27, 684971), (49, 377433), (63, 293559), (147, 125811), (189, 97853), (343, 53919), (441, 41937), (1029, 17973), (1323, 13979), (1997, 9261), (3087, 5991)]