21560888

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{269}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 41698800

約数和(自身を除く): 20137912

約数列:

[1, 2, 4, 8, 43, 86, 172, 233, 269, 344, 466, 538, 932, 1076, 1864, 2152, 10019, 11567, 20038, 23134, 40076, 46268, 62677, 80152, 92536, 125354, 250708, 501416, 2695111, 5390222, 10780444, 21560888]

約数ペア:

[(1, 21560888), (2, 10780444), (4, 5390222), (8, 2695111), (43, 501416), (86, 250708), (172, 125354), (233, 92536), (269, 80152), (344, 62677), (466, 46268), (538, 40076), (932, 23134), (1076, 20038), (1864, 11567), (2152, 10019)]