1998081

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{1721}}^1$

素因数の和:1773

約数の個数: 16

約数和(自身を含む): 3030720

約数和(自身を除く): 1032639

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 1721, 5163, 15489, 46467, 74003, 222009, 666027, 1998081]

約数ペア:

[(1, 1998081), (3, 666027), (9, 222009), (27, 74003), (43, 46467), (129, 15489), (387, 5163), (1161, 1721)]