20495818

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5158

約数の個数: 24

約数和(自身を含む): 36642564

約数和(自身を除く): 16146746

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 5101, 10202, 35707, 71414, 209141, 249949, 418282, 499898, 1463987, 2927974, 10247909, 20495818]

約数ペア:

[(1, 20495818), (2, 10247909), (7, 2927974), (14, 1463987), (41, 499898), (49, 418282), (82, 249949), (98, 209141), (287, 71414), (574, 35707), (2009, 10202), (4018, 5101)]