18131155

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4079}}^1$

素因数の和:4218

約数の個数: 16

約数和(自身を含む): 25067520

約数和(自身を除く): 6936365

約数列:

[1, 5, 7, 35, 127, 635, 889, 4079, 4445, 20395, 28553, 142765, 518033, 2590165, 3626231, 18131155]

約数ペア:

[(1, 18131155), (5, 3626231), (7, 2590165), (35, 518033), (127, 142765), (635, 28553), (889, 20395), (4079, 4445)]