20702073

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{563}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 33785856

約数和(自身を除く): 13083783

約数列:

[1, 3, 7, 17, 21, 51, 103, 119, 309, 357, 563, 721, 1689, 1751, 2163, 3941, 5253, 9571, 11823, 12257, 28713, 36771, 57989, 66997, 173967, 200991, 405923, 985813, 1217769, 2957439, 6900691, 20702073]

約数ペア:

[(1, 20702073), (3, 6900691), (7, 2957439), (17, 1217769), (21, 985813), (51, 405923), (103, 200991), (119, 173967), (309, 66997), (357, 57989), (563, 36771), (721, 28713), (1689, 12257), (1751, 11823), (2163, 9571), (3941, 5253)]