20636327999

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{406123}}^1$

素因数の和:406215

約数の個数: 24

約数和(自身を含む): 25834359888

約数和(自身を除く): 5198031889

約数列:

[1, 7, 17, 49, 61, 119, 427, 833, 1037, 2989, 7259, 50813, 406123, 2842861, 6904091, 19900027, 24773503, 48328637, 173414521, 338300459, 421149551, 1213901647, 2948046857, 20636327999]

約数ペア:

[(1, 20636327999), (7, 2948046857), (17, 1213901647), (49, 421149551), (61, 338300459), (119, 173414521), (427, 48328637), (833, 24773503), (1037, 19900027), (2989, 6904091), (7259, 2842861), (50813, 406123)]