21538872

素因数分解:

$2^3\times 3^4\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 61811640

約数和(自身を除く): 40272768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 81, 86, 108, 129, 162, 172, 216, 258, 324, 344, 387, 516, 648, 773, 774, 1032, 1161, 1546, 1548, 2319, 2322, 3092, 3096, 3483, 4638, 4644, 6184, 6957, 6966, 9276, 9288, 13914, 13932, 18552, 20871, 27828, 27864, 33239, 41742, 55656, 62613, 66478, 83484, 99717, 125226, 132956, 166968, 199434, 250452, 265912, 299151, 398868, 500904, 598302, 797736, 897453, 1196604, 1794906, 2393208, 2692359, 3589812, 5384718, 7179624, 10769436, 21538872]

約数ペア:

[(1, 21538872), (2, 10769436), (3, 7179624), (4, 5384718), (6, 3589812), (8, 2692359), (9, 2393208), (12, 1794906), (18, 1196604), (24, 897453), (27, 797736), (36, 598302), (43, 500904), (54, 398868), (72, 299151), (81, 265912), (86, 250452), (108, 199434), (129, 166968), (162, 132956), (172, 125226), (216, 99717), (258, 83484), (324, 66478), (344, 62613), (387, 55656), (516, 41742), (648, 33239), (773, 27864), (774, 27828), (1032, 20871), (1161, 18552), (1546, 13932), (1548, 13914), (2319, 9288), (2322, 9276), (3092, 6966), (3096, 6957), (3483, 6184), (4638, 4644)]