20528802

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:485

約数の個数: 80

約数和(自身を含む): 53921472

約数和(自身を除く): 33392670

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 43, 54, 63, 81, 86, 126, 129, 162, 189, 258, 301, 378, 387, 421, 567, 602, 774, 842, 903, 1134, 1161, 1263, 1806, 2322, 2526, 2709, 2947, 3483, 3789, 5418, 5894, 6966, 7578, 8127, 8841, 11367, 16254, 17682, 18103, 22734, 24381, 26523, 34101, 36206, 48762, 53046, 54309, 68202, 79569, 108618, 126721, 159138, 162927, 238707, 253442, 325854, 380163, 477414, 488781, 760326, 977562, 1140489, 1466343, 2280978, 2932686, 3421467, 6842934, 10264401, 20528802]

約数ペア:

[(1, 20528802), (2, 10264401), (3, 6842934), (6, 3421467), (7, 2932686), (9, 2280978), (14, 1466343), (18, 1140489), (21, 977562), (27, 760326), (42, 488781), (43, 477414), (54, 380163), (63, 325854), (81, 253442), (86, 238707), (126, 162927), (129, 159138), (162, 126721), (189, 108618), (258, 79569), (301, 68202), (378, 54309), (387, 53046), (421, 48762), (567, 36206), (602, 34101), (774, 26523), (842, 24381), (903, 22734), (1134, 18103), (1161, 17682), (1263, 16254), (1806, 11367), (2322, 8841), (2526, 8127), (2709, 7578), (2947, 6966), (3483, 5894), (3789, 5418)]