20780526

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{266417}}^1$

素因数の和:266435

約数の個数: 16

約数和(自身を含む): 44758224

約数和(自身を除く): 23977698

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 266417, 532834, 799251, 1598502, 3463421, 6926842, 10390263, 20780526]

約数ペア:

[(1, 20780526), (2, 10390263), (3, 6926842), (6, 3463421), (13, 1598502), (26, 799251), (39, 532834), (78, 266417)]