28647242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{20789}}^1$

素因数の和:20857

約数の個数: 16

約数和(自身を含む): 47151720

約数和(自身を除く): 18504478

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 20789, 41578, 270257, 540514, 1101817, 2203634, 14323621, 28647242]

約数ペア:

[(1, 28647242), (2, 14323621), (13, 2203634), (26, 1101817), (53, 540514), (106, 270257), (689, 41578), (1378, 20789)]