28870457

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1847}}^1$

素因数の和:1901

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 9050503

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1421, 1847, 2233, 12929, 15631, 20317, 53563, 90503, 142219, 374941, 589193, 995533, 2624587, 4124351, 28870457]

約数ペア:

[(1, 28870457), (7, 4124351), (11, 2624587), (29, 995533), (49, 589193), (77, 374941), (203, 142219), (319, 90503), (539, 53563), (1421, 20317), (1847, 15631), (2233, 12929)]