2172639

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{337}}^1$

素因数の和:654

約数の個数: 16

約数和(自身を含む): 3331328

約数和(自身を除く): 1158689

約数列:

[1, 3, 7, 21, 307, 337, 921, 1011, 2149, 2359, 6447, 7077, 103459, 310377, 724213, 2172639]

約数ペア:

[(1, 2172639), (3, 724213), (7, 310377), (21, 103459), (307, 7077), (337, 6447), (921, 2359), (1011, 2149)]