17420739

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43661}}^1$

素因数の和:43690

約数の個数: 16

約数和(自身を含む): 27943680

約数和(自身を除く): 10522941

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 43661, 130983, 305627, 829559, 916881, 2488677, 5806913, 17420739]

約数ペア:

[(1, 17420739), (3, 5806913), (7, 2488677), (19, 916881), (21, 829559), (57, 305627), (133, 130983), (399, 43661)]