20881457

素因数分解:

${\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:376

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 1928143

約数列:

[1, 17, 59, 109, 191, 1003, 1853, 3247, 6431, 11269, 20819, 109327, 191573, 353923, 1228321, 20881457]

約数ペア:

[(1, 20881457), (17, 1228321), (59, 353923), (109, 191573), (191, 109327), (1003, 20819), (1853, 11269), (3247, 6431)]