20780782

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2064

約数の個数: 24

約数和(自身を含む): 35076888

約数和(自身を除く): 14296106

約数列:

[1, 2, 11, 22, 43, 86, 121, 242, 473, 946, 1997, 3994, 5203, 10406, 21967, 43934, 85871, 171742, 241637, 483274, 944581, 1889162, 10390391, 20780782]

約数ペア:

[(1, 20780782), (2, 10390391), (11, 1889162), (22, 944581), (43, 483274), (86, 241637), (121, 171742), (242, 85871), (473, 43934), (946, 21967), (1997, 10406), (3994, 5203)]