18715664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2473}}^1$

素因数の和:2535

約数の個数: 40

約数和(自身を含む): 40494432

約数和(自身を除く): 21778768

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2473, 3784, 4946, 7568, 9892, 19784, 27203, 39568, 54406, 106339, 108812, 212678, 217624, 425356, 435248, 850712, 1169729, 1701424, 2339458, 4678916, 9357832, 18715664]

約数ペア:

[(1, 18715664), (2, 9357832), (4, 4678916), (8, 2339458), (11, 1701424), (16, 1169729), (22, 850712), (43, 435248), (44, 425356), (86, 217624), (88, 212678), (172, 108812), (176, 106339), (344, 54406), (473, 39568), (688, 27203), (946, 19784), (1892, 9892), (2473, 7568), (3784, 4946)]