8621457

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 13039488

約数和(自身を除く): 4418031

約数列:

[1, 3, 13, 39, 43, 53, 97, 129, 159, 291, 559, 689, 1261, 1677, 2067, 2279, 3783, 4171, 5141, 6837, 12513, 15423, 29627, 54223, 66833, 88881, 162669, 200499, 221063, 663189, 2873819, 8621457]

約数ペア:

[(1, 8621457), (3, 2873819), (13, 663189), (39, 221063), (43, 200499), (53, 162669), (97, 88881), (129, 66833), (159, 54223), (291, 29627), (559, 15423), (689, 12513), (1261, 6837), (1677, 5141), (2067, 4171), (2279, 3783)]