217065105

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{67939}}^1$

素因数の和:68021

約数の個数: 24

約数和(自身を含む): 381551040

約数和(自身を除く): 164485935

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 67939, 203817, 339695, 611451, 1019085, 3057255, 4823669, 14471007, 24118345, 43413021, 72355035, 217065105]

約数ペア:

[(1, 217065105), (3, 72355035), (5, 43413021), (9, 24118345), (15, 14471007), (45, 4823669), (71, 3057255), (213, 1019085), (355, 611451), (639, 339695), (1065, 203817), (3195, 67939)]