19742193

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 29244800

約数和(自身を除く): 9502607

約数列:

[1, 3, 9, 73, 151, 199, 219, 453, 597, 657, 1359, 1791, 11023, 14527, 30049, 33069, 43581, 90147, 99207, 130743, 270441, 2193577, 6580731, 19742193]

約数ペア:

[(1, 19742193), (3, 6580731), (9, 2193577), (73, 270441), (151, 130743), (199, 99207), (219, 90147), (453, 43581), (597, 33069), (657, 30049), (1359, 14527), (1791, 11023)]