28187747

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2531}}^1$

素因数の和:2618

約数の個数: 16

約数和(自身を含む): 33868032

約数和(自身を除く): 5680285

約数列:

[1, 7, 37, 43, 259, 301, 1591, 2531, 11137, 17717, 93647, 108833, 655529, 761831, 4026821, 28187747]

約数ペア:

[(1, 28187747), (7, 4026821), (37, 761831), (43, 655529), (259, 108833), (301, 93647), (1591, 17717), (2531, 11137)]