16921681

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2683}}^1$

素因数の和:2760

約数の個数: 16

約数和(自身を含む): 20870784

約数和(自身を除く): 3949103

約数列:

[1, 7, 17, 53, 119, 371, 901, 2683, 6307, 18781, 45611, 142199, 319277, 995393, 2417383, 16921681]

約数ペア:

[(1, 16921681), (7, 2417383), (17, 995393), (53, 319277), (119, 142199), (371, 45611), (901, 18781), (2683, 6307)]