2881863

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{887}}^1$

素因数の和:931

約数の個数: 18

約数和(自身を含む): 4398264

約数和(自身を除く): 1516401

約数列:

[1, 3, 9, 19, 57, 171, 361, 887, 1083, 2661, 3249, 7983, 16853, 50559, 151677, 320207, 960621, 2881863]

約数ペア:

[(1, 2881863), (3, 960621), (9, 320207), (19, 151677), (57, 50559), (171, 16853), (361, 7983), (887, 3249), (1083, 2661)]