19997593

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{15277}}^1$

素因数の和:15312

約数の個数: 16

約数和(自身を含む): 26400384

約数和(自身を除く): 6402791

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 15277, 106939, 168047, 259709, 1176329, 1817963, 2856799, 19997593]

約数ペア:

[(1, 19997593), (7, 2856799), (11, 1817963), (17, 1176329), (77, 259709), (119, 168047), (187, 106939), (1309, 15277)]