18518031

素因数分解:

$3^3\times 7^2\times {\mathrm{13997}}^1$

素因数の和:14020

約数の個数: 24

約数和(自身を含む): 31915440

約数和(自身を除く): 13397409

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 13997, 41991, 97979, 125973, 293937, 377919, 685853, 881811, 2057559, 2645433, 6172677, 18518031]

約数ペア:

[(1, 18518031), (3, 6172677), (7, 2645433), (9, 2057559), (21, 881811), (27, 685853), (49, 377919), (63, 293937), (147, 125973), (189, 97979), (441, 41991), (1323, 13997)]