21054462

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:545

約数の個数: 64

約数和(自身を含む): 50512896

約数和(自身を除く): 29458434

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 53, 66, 78, 106, 143, 159, 286, 318, 429, 463, 583, 689, 858, 926, 1166, 1378, 1389, 1749, 2067, 2778, 3498, 4134, 5093, 6019, 7579, 10186, 12038, 15158, 15279, 18057, 22737, 24539, 30558, 36114, 45474, 49078, 66209, 73617, 132418, 147234, 198627, 269929, 319007, 397254, 539858, 638014, 809787, 957021, 1619574, 1914042, 3509077, 7018154, 10527231, 21054462]

約数ペア:

[(1, 21054462), (2, 10527231), (3, 7018154), (6, 3509077), (11, 1914042), (13, 1619574), (22, 957021), (26, 809787), (33, 638014), (39, 539858), (53, 397254), (66, 319007), (78, 269929), (106, 198627), (143, 147234), (159, 132418), (286, 73617), (318, 66209), (429, 49078), (463, 45474), (583, 36114), (689, 30558), (858, 24539), (926, 22737), (1166, 18057), (1378, 15279), (1389, 15158), (1749, 12038), (2067, 10186), (2778, 7579), (3498, 6019), (4134, 5093)]