16921919

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3307}}^1$

素因数の和:3374

約数の個数: 16

約数和(自身を含む): 20959488

約数和(自身を除く): 4037569

約数列:

[1, 7, 17, 43, 119, 301, 731, 3307, 5117, 23149, 56219, 142201, 393533, 995407, 2417417, 16921919]

約数ペア:

[(1, 16921919), (7, 2417417), (17, 995407), (43, 393533), (119, 142201), (301, 56219), (731, 23149), (3307, 5117)]