20975003

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{593}}^1$

素因数の和:794

約数の個数: 16

約数和(自身を含む): 24938496

約数和(自身を除く): 3963493

約数列:

[1, 7, 31, 163, 217, 593, 1141, 4151, 5053, 18383, 35371, 96659, 128681, 676613, 2996429, 20975003]

約数ペア:

[(1, 20975003), (7, 2996429), (31, 676613), (163, 128681), (217, 96659), (593, 35371), (1141, 18383), (4151, 5053)]