21001088

素因数分解:

$2^7\times {\mathrm{164071}}^1$

素因数の和:164085

約数の個数: 16

約数和(自身を含む): 41838360

約数和(自身を除く): 20837272

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 164071, 328142, 656284, 1312568, 2625136, 5250272, 10500544, 21001088]

約数ペア:

[(1, 21001088), (2, 10500544), (4, 5250272), (8, 2625136), (16, 1312568), (32, 656284), (64, 328142), (128, 164071)]