19696887

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10781}}^1$

素因数の和:10823

約数の個数: 24

約数和(自身を含む): 33639840

約数和(自身を除く): 13942953

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 10781, 32343, 75467, 97029, 226401, 312649, 679203, 937947, 2188543, 2813841, 6565629, 19696887]

約数ペア:

[(1, 19696887), (3, 6565629), (7, 2813841), (9, 2188543), (21, 937947), (29, 679203), (63, 312649), (87, 226401), (203, 97029), (261, 75467), (609, 32343), (1827, 10781)]