21767815

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{439}}^1$

素因数の和:702

約数の個数: 16

約数和(自身を含む): 26864640

約数和(自身を除く): 5096825

約数列:

[1, 5, 47, 211, 235, 439, 1055, 2195, 9917, 20633, 49585, 92629, 103165, 463145, 4353563, 21767815]

約数ペア:

[(1, 21767815), (5, 4353563), (47, 463145), (211, 103165), (235, 92629), (439, 49585), (1055, 20633), (2195, 9917)]