2642031

素因数分解:

$3^3\times 7^2\times {\mathrm{1997}}^1$

素因数の和:2020

約数の個数: 24

約数和(自身を含む): 4555440

約数和(自身を除く): 1913409

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 1997, 5991, 13979, 17973, 41937, 53919, 97853, 125811, 293559, 377433, 880677, 2642031]

約数ペア:

[(1, 2642031), (3, 880677), (7, 377433), (9, 293559), (21, 125811), (27, 97853), (49, 53919), (63, 41937), (147, 17973), (189, 13979), (441, 5991), (1323, 1997)]