28873863

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{8887}}^1$

素因数の和:8931

約数の個数: 18

約数和(自身を含む): 44022264

約数和(自身を除く): 15148401

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 8887, 26661, 79983, 168853, 506559, 1519677, 3208207, 9624621, 28873863]

約数ペア:

[(1, 28873863), (3, 9624621), (9, 3208207), (19, 1519677), (57, 506559), (171, 168853), (361, 79983), (1083, 26661), (3249, 8887)]