21288622

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:891

約数の個数: 16

約数和(自身を含む): 32508000

約数和(自身を除く): 11219378

約数列:

[1, 2, 89, 178, 199, 398, 601, 1202, 17711, 35422, 53489, 106978, 119599, 239198, 10644311, 21288622]

約数ペア:

[(1, 21288622), (2, 10644311), (89, 239198), (178, 119599), (199, 106978), (398, 53489), (601, 35422), (1202, 17711)]