256579533

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{12379}}^1$

素因数の和:12446

約数の個数: 36

約数和(自身を含む): 440331840

約数和(自身を除く): 183752307

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 2303, 2961, 6909, 12379, 20727, 37137, 86653, 111411, 259959, 581813, 606571, 779877, 1745439, 1819713, 4072691, 5236317, 5459139, 12218073, 28508837, 36654219, 85526511, 256579533]

約数ペア:

[(1, 256579533), (3, 85526511), (7, 36654219), (9, 28508837), (21, 12218073), (47, 5459139), (49, 5236317), (63, 4072691), (141, 1819713), (147, 1745439), (329, 779877), (423, 606571), (441, 581813), (987, 259959), (2303, 111411), (2961, 86653), (6909, 37137), (12379, 20727)]