21045576

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20393}}^1$

素因数の和:20445

約数の個数: 32

約数和(自身を含む): 53840160

約数和(自身を除く): 32794584

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20393, 40786, 61179, 81572, 122358, 163144, 244716, 489432, 876899, 1753798, 2630697, 3507596, 5261394, 7015192, 10522788, 21045576]

約数ペア:

[(1, 21045576), (2, 10522788), (3, 7015192), (4, 5261394), (6, 3507596), (8, 2630697), (12, 1753798), (24, 876899), (43, 489432), (86, 244716), (129, 163144), (172, 122358), (258, 81572), (344, 61179), (516, 40786), (1032, 20393)]