20187718481

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{907}}^1\times {\mathrm{4523}}^1$

素因数の和:5493

約数の個数: 32

約数和(自身を含む): 24975375360

約数和(自身を除く): 4787656879

約数列:

[1, 7, 19, 37, 133, 259, 703, 907, 4523, 4921, 6349, 17233, 31661, 33559, 85937, 120631, 167351, 234913, 601559, 637621, 1171457, 3179669, 4102361, 4463347, 22257683, 28716527, 77944859, 151787357, 545614013, 1062511499, 2883959783, 20187718481]

約数ペア:

[(1, 20187718481), (7, 2883959783), (19, 1062511499), (37, 545614013), (133, 151787357), (259, 77944859), (703, 28716527), (907, 22257683), (4523, 4463347), (4921, 4102361), (6349, 3179669), (17233, 1171457), (31661, 637621), (33559, 601559), (85937, 234913), (120631, 167351)]