28133456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{135257}}^1$

素因数の和:135278

約数の個数: 20

約数和(自身を含む): 58701972

約数和(自身を除く): 30568516

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 135257, 270514, 541028, 1082056, 1758341, 2164112, 3516682, 7033364, 14066728, 28133456]

約数ペア:

[(1, 28133456), (2, 14066728), (4, 7033364), (8, 3516682), (13, 2164112), (16, 1758341), (26, 1082056), (52, 541028), (104, 270514), (208, 135257)]