20984337

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1669}}^1$

素因数の和:1813

約数の個数: 24

約数和(自身を含む): 33346560

約数和(自身を除く): 12362223

約数列:

[1, 3, 9, 11, 33, 99, 127, 381, 1143, 1397, 1669, 4191, 5007, 12573, 15021, 18359, 55077, 165231, 211963, 635889, 1907667, 2331593, 6994779, 20984337]

約数ペア:

[(1, 20984337), (3, 6994779), (9, 2331593), (11, 1907667), (33, 635889), (99, 211963), (127, 165231), (381, 55077), (1143, 18359), (1397, 15021), (1669, 12573), (4191, 5007)]