21868508

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 39043200

約数和(自身を除く): 17174692

約数列:

[1, 2, 4, 83, 166, 199, 331, 332, 398, 662, 796, 1324, 16517, 27473, 33034, 54946, 65869, 66068, 109892, 131738, 263476, 5467127, 10934254, 21868508]

約数ペア:

[(1, 21868508), (2, 10934254), (4, 5467127), (83, 263476), (166, 131738), (199, 109892), (331, 66068), (332, 65869), (398, 54946), (662, 33034), (796, 27473), (1324, 16517)]