257894

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1$

素因数の和:144

約数の個数: 24

約数和(自身を含む): 483120

約数和(自身を除く): 225226

約数列:

[1, 2, 7, 13, 14, 26, 91, 109, 169, 182, 218, 338, 763, 1183, 1417, 1526, 2366, 2834, 9919, 18421, 19838, 36842, 128947, 257894]

約数ペア:

[(1, 257894), (2, 128947), (7, 36842), (13, 19838), (14, 18421), (26, 9919), (91, 2834), (109, 2366), (169, 1526), (182, 1417), (218, 1183), (338, 763)]