11821059

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{7681}}^1$

素因数の和:7712

約数の個数: 20

約数和(自身を含む): 18590440

約数和(自身を除く): 6769381

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 7681, 23043, 69129, 145939, 207387, 437817, 622161, 1313451, 3940353, 11821059]

約数ペア:

[(1, 11821059), (3, 3940353), (9, 1313451), (19, 622161), (27, 437817), (57, 207387), (81, 145939), (171, 69129), (513, 23043), (1539, 7681)]