28057851

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2311}}^1$

素因数の和:2407

約数の個数: 24

約数和(自身を含む): 43280640

約数和(自身を除く): 15222789

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 2311, 4047, 6933, 12141, 20799, 43909, 131727, 164081, 395181, 492243, 1476729, 3117539, 9352617, 28057851]

約数ペア:

[(1, 28057851), (3, 9352617), (9, 3117539), (19, 1476729), (57, 492243), (71, 395181), (171, 164081), (213, 131727), (639, 43909), (1349, 20799), (2311, 12141), (4047, 6933)]