28143973

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 7337627

約数列:

[1, 11, 13, 23, 43, 143, 199, 253, 299, 473, 559, 989, 2189, 2587, 3289, 4577, 6149, 8557, 10879, 12857, 28457, 50347, 59501, 94127, 111241, 141427, 196811, 654511, 1223651, 2164921, 2558543, 28143973]

約数ペア:

[(1, 28143973), (11, 2558543), (13, 2164921), (23, 1223651), (43, 654511), (143, 196811), (199, 141427), (253, 111241), (299, 94127), (473, 59501), (559, 50347), (989, 28457), (2189, 12857), (2587, 10879), (3289, 8557), (4577, 6149)]