21868216

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{757}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 43115040

約数和(自身を除く): 21246824

約数列:

[1, 2, 4, 8, 23, 46, 92, 157, 184, 314, 628, 757, 1256, 1514, 3028, 3611, 6056, 7222, 14444, 17411, 28888, 34822, 69644, 118849, 139288, 237698, 475396, 950792, 2733527, 5467054, 10934108, 21868216]

約数ペア:

[(1, 21868216), (2, 10934108), (4, 5467054), (8, 2733527), (23, 950792), (46, 475396), (92, 237698), (157, 139288), (184, 118849), (314, 69644), (628, 34822), (757, 28888), (1256, 17411), (1514, 14444), (3028, 7222), (3611, 6056)]