20883356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 43276800

約数和(自身を除く): 22393444

約数列:

[1, 2, 4, 13, 19, 23, 26, 38, 46, 52, 76, 92, 247, 299, 437, 494, 598, 874, 919, 988, 1196, 1748, 1838, 3676, 5681, 11362, 11947, 17461, 21137, 22724, 23894, 34922, 42274, 47788, 69844, 84548, 226993, 274781, 401603, 453986, 549562, 803206, 907972, 1099124, 1606412, 5220839, 10441678, 20883356]

約数ペア:

[(1, 20883356), (2, 10441678), (4, 5220839), (13, 1606412), (19, 1099124), (23, 907972), (26, 803206), (38, 549562), (46, 453986), (52, 401603), (76, 274781), (92, 226993), (247, 84548), (299, 69844), (437, 47788), (494, 42274), (598, 34922), (874, 23894), (919, 22724), (988, 21137), (1196, 17461), (1748, 11947), (1838, 11362), (3676, 5681)]