20980134

素因数分解:

$2^1\times 3^5\times 7^2\times {\mathrm{881}}^1$

素因数の和:912

約数の個数: 72

約数和(自身を含む): 54899208

約数和(自身を除く): 33919074

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 81, 98, 126, 147, 162, 189, 243, 294, 378, 441, 486, 567, 881, 882, 1134, 1323, 1701, 1762, 2643, 2646, 3402, 3969, 5286, 6167, 7929, 7938, 11907, 12334, 15858, 18501, 23787, 23814, 37002, 43169, 47574, 55503, 71361, 86338, 111006, 129507, 142722, 166509, 214083, 259014, 333018, 388521, 428166, 499527, 777042, 999054, 1165563, 1498581, 2331126, 2997162, 3496689, 6993378, 10490067, 20980134]

約数ペア:

[(1, 20980134), (2, 10490067), (3, 6993378), (6, 3496689), (7, 2997162), (9, 2331126), (14, 1498581), (18, 1165563), (21, 999054), (27, 777042), (42, 499527), (49, 428166), (54, 388521), (63, 333018), (81, 259014), (98, 214083), (126, 166509), (147, 142722), (162, 129507), (189, 111006), (243, 86338), (294, 71361), (378, 55503), (441, 47574), (486, 43169), (567, 37002), (881, 23814), (882, 23787), (1134, 18501), (1323, 15858), (1701, 12334), (1762, 11907), (2643, 7938), (2646, 7929), (3402, 6167), (3969, 5286)]