18608919

素因数分解:

$3^1\times 7^1\times {\mathrm{907}}^1\times {\mathrm{977}}^1$

素因数の和:1894

約数の個数: 16

約数和(自身を含む): 28416768

約数和(自身を除く): 9807849

約数列:

[1, 3, 7, 21, 907, 977, 2721, 2931, 6349, 6839, 19047, 20517, 886139, 2658417, 6202973, 18608919]

約数ペア:

[(1, 18608919), (3, 6202973), (7, 2658417), (21, 886139), (907, 20517), (977, 19047), (2721, 6839), (2931, 6349)]