20885975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1433}}^1$

素因数の和:1507

約数の個数: 24

約数和(自身を含む): 28806192

約数和(自身を除く): 7920217

約数列:

[1, 5, 11, 25, 53, 55, 265, 275, 583, 1325, 1433, 2915, 7165, 14575, 15763, 35825, 75949, 78815, 379745, 394075, 835439, 1898725, 4177195, 20885975]

約数ペア:

[(1, 20885975), (5, 4177195), (11, 1898725), (25, 835439), (53, 394075), (55, 379745), (265, 78815), (275, 75949), (583, 35825), (1325, 15763), (1433, 14575), (2915, 7165)]