2001989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:268

約数の個数: 16

約数和(自身を含む): 2346624

約数和(自身を除く): 344635

約数列:

[1, 11, 23, 41, 193, 253, 451, 943, 2123, 4439, 7913, 10373, 48829, 87043, 181999, 2001989]

約数ペア:

[(1, 2001989), (11, 181999), (23, 87043), (41, 48829), (193, 10373), (253, 7913), (451, 4439), (943, 2123)]