20981906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{32887}}^1$

素因数の和:32929

約数の個数: 16

約数和(自身を含む): 35519040

約数和(自身を除く): 14537134

約数列:

[1, 2, 11, 22, 29, 58, 319, 638, 32887, 65774, 361757, 723514, 953723, 1907446, 10490953, 20981906]

約数ペア:

[(1, 20981906), (2, 10490953), (11, 1907446), (22, 953723), (29, 723514), (58, 361757), (319, 65774), (638, 32887)]