81109259

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{5189}}^1$

素因数の和:5243

約数の個数: 24

約数和(自身を含む): 106498800

約数和(自身を除く): 25389541

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1421, 2233, 5189, 15631, 36323, 57079, 150481, 254261, 399553, 1053367, 1655291, 2796871, 7373569, 11587037, 81109259]

約数ペア:

[(1, 81109259), (7, 11587037), (11, 7373569), (29, 2796871), (49, 1655291), (77, 1053367), (203, 399553), (319, 254261), (539, 150481), (1421, 57079), (2233, 36323), (5189, 15631)]