28857257

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 36

約数和(自身を含む): 36813744

約数和(自身を除く): 7956487

約数列:

[1, 11, 13, 19, 43, 143, 169, 209, 247, 361, 473, 559, 817, 1859, 2717, 3211, 3971, 4693, 6149, 7267, 8987, 10621, 15523, 35321, 51623, 61009, 79937, 116831, 138073, 170753, 201799, 671099, 1518803, 2219789, 2623387, 28857257]

約数ペア:

[(1, 28857257), (11, 2623387), (13, 2219789), (19, 1518803), (43, 671099), (143, 201799), (169, 170753), (209, 138073), (247, 116831), (361, 79937), (473, 61009), (559, 51623), (817, 35321), (1859, 15523), (2717, 10621), (3211, 8987), (3971, 7267), (4693, 6149)]