20219484951

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{509}}^1\times {\mathrm{1879}}^1$

素因数の和:2435

約数の個数: 56

約数和(自身を含む): 31439052000

約数和(自身を除く): 11219567049

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 509, 729, 783, 1527, 1879, 2349, 4581, 5637, 7047, 13743, 14761, 16911, 21141, 41229, 44283, 50733, 54491, 123687, 132849, 152199, 163473, 371061, 398547, 456597, 490419, 956411, 1195641, 1369791, 1471257, 2869233, 3586923, 4413771, 8607699, 10760769, 13241313, 25823097, 27735919, 39723939, 77469291, 83207757, 232407873, 249623271, 697223619, 748869813, 2246609439, 6739828317, 20219484951]

約数ペア:

[(1, 20219484951), (3, 6739828317), (9, 2246609439), (27, 748869813), (29, 697223619), (81, 249623271), (87, 232407873), (243, 83207757), (261, 77469291), (509, 39723939), (729, 27735919), (783, 25823097), (1527, 13241313), (1879, 10760769), (2349, 8607699), (4581, 4413771), (5637, 3586923), (7047, 2869233), (13743, 1471257), (14761, 1369791), (16911, 1195641), (21141, 956411), (41229, 490419), (44283, 456597), (50733, 398547), (54491, 371061), (123687, 163473), (132849, 152199)]