20539662

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:713

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 29102322

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 37, 39, 66, 74, 78, 111, 143, 222, 286, 407, 429, 481, 647, 814, 858, 962, 1221, 1294, 1443, 1941, 2442, 2886, 3882, 5291, 7117, 8411, 10582, 14234, 15873, 16822, 21351, 23939, 25233, 31746, 42702, 47878, 50466, 71817, 92521, 143634, 185042, 263329, 277563, 311207, 526658, 555126, 622414, 789987, 933621, 1579974, 1867242, 3423277, 6846554, 10269831, 20539662]

約数ペア:

[(1, 20539662), (2, 10269831), (3, 6846554), (6, 3423277), (11, 1867242), (13, 1579974), (22, 933621), (26, 789987), (33, 622414), (37, 555126), (39, 526658), (66, 311207), (74, 277563), (78, 263329), (111, 185042), (143, 143634), (222, 92521), (286, 71817), (407, 50466), (429, 47878), (481, 42702), (647, 31746), (814, 25233), (858, 23939), (962, 21351), (1221, 16822), (1294, 15873), (1443, 14234), (1941, 10582), (2442, 8411), (2886, 7117), (3882, 5291)]