21170792

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61543}}^1$

素因数の和:61592

約数の個数: 16

約数和(自身を含む): 40619040

約数和(自身を除く): 19448248

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61543, 123086, 246172, 492344, 2646349, 5292698, 10585396, 21170792]

約数ペア:

[(1, 21170792), (2, 10585396), (4, 5292698), (8, 2646349), (43, 492344), (86, 246172), (172, 123086), (344, 61543)]