28333319

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 34583040

約数和(自身を除く): 6249721

約数列:

[1, 7, 29, 49, 127, 157, 203, 889, 1099, 1421, 3683, 4553, 6223, 7693, 19939, 25781, 31871, 139573, 180467, 223097, 578231, 977011, 4047617, 28333319]

約数ペア:

[(1, 28333319), (7, 4047617), (29, 977011), (49, 578231), (127, 223097), (157, 180467), (203, 139573), (889, 31871), (1099, 25781), (1421, 19939), (3683, 7693), (4553, 6223)]