20803563

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 35582976

約数和(自身を除く): 14779413

約数列:

[1, 3, 9, 11, 17, 33, 47, 51, 99, 141, 153, 187, 263, 423, 517, 561, 789, 799, 1551, 1683, 2367, 2397, 2893, 4471, 4653, 7191, 8679, 8789, 12361, 13413, 26037, 26367, 37083, 40239, 49181, 79101, 111249, 135971, 147543, 210137, 407913, 442629, 630411, 1223739, 1891233, 2311507, 6934521, 20803563]

約数ペア:

[(1, 20803563), (3, 6934521), (9, 2311507), (11, 1891233), (17, 1223739), (33, 630411), (47, 442629), (51, 407913), (99, 210137), (141, 147543), (153, 135971), (187, 111249), (263, 79101), (423, 49181), (517, 40239), (561, 37083), (789, 26367), (799, 26037), (1551, 13413), (1683, 12361), (2367, 8789), (2397, 8679), (2893, 7191), (4471, 4653)]