20687564961

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11323243}}^1$

素因数の和:11323285

約数の個数: 24

約数和(自身を含む): 35328521280

約数和(自身を除く): 14640956319

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11323243, 33969729, 79262701, 101909187, 237788103, 328374047, 713364309, 985122141, 2298618329, 2955366423, 6895854987, 20687564961]

約数ペア:

[(1, 20687564961), (3, 6895854987), (7, 2955366423), (9, 2298618329), (21, 985122141), (29, 713364309), (63, 328374047), (87, 237788103), (203, 101909187), (261, 79262701), (609, 33969729), (1827, 11323243)]