21131176

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2203}}^1$

素因数の和:2329

約数の個数: 32

約数和(自身を含む): 43639200

約数和(自身を除く): 22508024

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 109, 218, 436, 872, 1199, 2203, 2398, 4406, 4796, 8812, 9592, 17624, 24233, 48466, 96932, 193864, 240127, 480254, 960508, 1921016, 2641397, 5282794, 10565588, 21131176]

約数ペア:

[(1, 21131176), (2, 10565588), (4, 5282794), (8, 2641397), (11, 1921016), (22, 960508), (44, 480254), (88, 240127), (109, 193864), (218, 96932), (436, 48466), (872, 24233), (1199, 17624), (2203, 9592), (2398, 8812), (4406, 4796)]