21075095

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{359}}^1$

素因数の和:622

約数の個数: 16

約数和(自身を含む): 25920000

約数和(自身を除く): 4844905

約数列:

[1, 5, 59, 199, 295, 359, 995, 1795, 11741, 21181, 58705, 71441, 105905, 357205, 4215019, 21075095]

約数ペア:

[(1, 21075095), (5, 4215019), (59, 357205), (199, 105905), (295, 71441), (359, 58705), (995, 21181), (1795, 11741)]