12990957

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4871}}^1$

素因数の和:5008

約数の個数: 16

約数和(自身を含む): 19955712

約数和(自身を除く): 6964755

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 4871, 14613, 34097, 102291, 618617, 1855851, 4330319, 12990957]

約数ペア:

[(1, 12990957), (3, 4330319), (7, 1855851), (21, 618617), (127, 102291), (381, 34097), (889, 14613), (2667, 4871)]