20604017

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 25803648

約数和(自身を除く): 5199631

約数列:

[1, 7, 17, 41, 103, 119, 287, 697, 721, 1681, 1751, 4223, 4879, 11767, 12257, 28577, 29561, 71791, 173143, 200039, 502537, 1212001, 2943431, 20604017]

約数ペア:

[(1, 20604017), (7, 2943431), (17, 1212001), (41, 502537), (103, 200039), (119, 173143), (287, 71791), (697, 29561), (721, 28577), (1681, 12257), (1751, 11767), (4223, 4879)]