18979576

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2801}}^1$

素因数の和:2836

約数の個数: 48

約数和(自身を含む): 44719920

約数和(自身を除く): 25740344

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 2801, 3388, 5602, 6776, 11204, 19607, 22408, 30811, 39214, 61622, 78428, 123244, 156856, 215677, 246488, 338921, 431354, 677842, 862708, 1355684, 1725416, 2372447, 2711368, 4744894, 9489788, 18979576]

約数ペア:

[(1, 18979576), (2, 9489788), (4, 4744894), (7, 2711368), (8, 2372447), (11, 1725416), (14, 1355684), (22, 862708), (28, 677842), (44, 431354), (56, 338921), (77, 246488), (88, 215677), (121, 156856), (154, 123244), (242, 78428), (308, 61622), (484, 39214), (616, 30811), (847, 22408), (968, 19607), (1694, 11204), (2801, 6776), (3388, 5602)]