1721151

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 18

約数和(自身を含む): 2581800

約数和(自身を除く): 860649

約数列:

[1, 3, 9, 31, 93, 199, 279, 597, 961, 1791, 2883, 6169, 8649, 18507, 55521, 191239, 573717, 1721151]

約数ペア:

[(1, 1721151), (3, 573717), (9, 191239), (31, 55521), (93, 18507), (199, 8649), (279, 6169), (597, 2883), (961, 1791)]