20816478

素因数分解:

$2^1\times 3^2\times {\mathrm{293}}^1\times {\mathrm{3947}}^1$

素因数の和:4248

約数の個数: 24

約数和(自身を含む): 45267768

約数和(自身を除く): 24451290

約数列:

[1, 2, 3, 6, 9, 18, 293, 586, 879, 1758, 2637, 3947, 5274, 7894, 11841, 23682, 35523, 71046, 1156471, 2312942, 3469413, 6938826, 10408239, 20816478]

約数ペア:

[(1, 20816478), (2, 10408239), (3, 6938826), (6, 3469413), (9, 2312942), (18, 1156471), (293, 71046), (586, 35523), (879, 23682), (1758, 11841), (2637, 7894), (3947, 5274)]