28190129

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 33649920

約数和(自身を除く): 5459791

約数列:

[1, 11, 19, 31, 209, 229, 341, 361, 589, 2519, 3971, 4351, 6479, 7099, 11191, 47861, 78089, 82669, 123101, 134881, 909359, 1483691, 2562739, 28190129]

約数ペア:

[(1, 28190129), (11, 2562739), (19, 1483691), (31, 909359), (209, 134881), (229, 123101), (341, 82669), (361, 78089), (589, 47861), (2519, 11191), (3971, 7099), (4351, 6479)]