20873072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{509}}^1$

素因数の和:761

約数の個数: 40

約数和(自身を含む): 44394480

約数和(自身を除く): 23521408

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 233, 466, 509, 932, 1018, 1864, 2036, 2563, 3728, 4072, 5126, 5599, 8144, 10252, 11198, 20504, 22396, 41008, 44792, 89584, 118597, 237194, 474388, 948776, 1304567, 1897552, 2609134, 5218268, 10436536, 20873072]

約数ペア:

[(1, 20873072), (2, 10436536), (4, 5218268), (8, 2609134), (11, 1897552), (16, 1304567), (22, 948776), (44, 474388), (88, 237194), (176, 118597), (233, 89584), (466, 44792), (509, 41008), (932, 22396), (1018, 20504), (1864, 11198), (2036, 10252), (2563, 8144), (3728, 5599), (4072, 5126)]