16989693

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{1307}}^1$

素因数の和:1936

約数の個数: 16

約数和(自身を含む): 25950720

約数和(自身を除く): 8961027

約数列:

[1, 3, 7, 21, 619, 1307, 1857, 3921, 4333, 9149, 12999, 27447, 809033, 2427099, 5663231, 16989693]

約数ペア:

[(1, 16989693), (3, 5663231), (7, 2427099), (21, 809033), (619, 27447), (1307, 12999), (1857, 9149), (3921, 4333)]