19201311

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 28454400

約数和(自身を除く): 9253089

約数列:

[1, 3, 9, 71, 151, 199, 213, 453, 597, 639, 1359, 1791, 10721, 14129, 30049, 32163, 42387, 90147, 96489, 127161, 270441, 2133479, 6400437, 19201311]

約数ペア:

[(1, 19201311), (3, 6400437), (9, 2133479), (71, 270441), (151, 127161), (199, 96489), (213, 90147), (453, 42387), (597, 32163), (639, 30049), (1359, 14129), (1791, 10721)]