20172285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3767}}^1$

素因数の和:3802

約数の個数: 48

約数和(自身を含む): 42322176

約数和(自身を除く): 22149891

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3767, 5355, 11301, 18835, 26369, 33903, 56505, 64039, 79107, 131845, 169515, 192117, 237321, 320195, 395535, 448273, 576351, 960585, 1186605, 1344819, 2241365, 2881755, 4034457, 6724095, 20172285]

約数ペア:

[(1, 20172285), (3, 6724095), (5, 4034457), (7, 2881755), (9, 2241365), (15, 1344819), (17, 1186605), (21, 960585), (35, 576351), (45, 448273), (51, 395535), (63, 320195), (85, 237321), (105, 192117), (119, 169515), (153, 131845), (255, 79107), (315, 64039), (357, 56505), (595, 33903), (765, 26369), (1071, 18835), (1785, 11301), (3767, 5355)]