20808306

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1193}}^1$

素因数の和:1240

約数の個数: 64

約数和(自身を含む): 51580800

約数和(自身を除く): 30772494

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 34, 38, 51, 54, 57, 102, 114, 153, 171, 306, 323, 342, 459, 513, 646, 918, 969, 1026, 1193, 1938, 2386, 2907, 3579, 5814, 7158, 8721, 10737, 17442, 20281, 21474, 22667, 32211, 40562, 45334, 60843, 64422, 68001, 121686, 136002, 182529, 204003, 365058, 385339, 408006, 547587, 612009, 770678, 1095174, 1156017, 1224018, 2312034, 3468051, 6936102, 10404153, 20808306]

約数ペア:

[(1, 20808306), (2, 10404153), (3, 6936102), (6, 3468051), (9, 2312034), (17, 1224018), (18, 1156017), (19, 1095174), (27, 770678), (34, 612009), (38, 547587), (51, 408006), (54, 385339), (57, 365058), (102, 204003), (114, 182529), (153, 136002), (171, 121686), (306, 68001), (323, 64422), (342, 60843), (459, 45334), (513, 40562), (646, 32211), (918, 22667), (969, 21474), (1026, 20281), (1193, 17442), (1938, 10737), (2386, 8721), (2907, 7158), (3579, 5814)]