21360724

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 46964736

約数和(自身を除く): 25604012

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 223, 308, 311, 446, 622, 892, 1244, 1561, 2177, 2453, 3122, 3421, 4354, 4906, 6244, 6842, 8708, 9812, 13684, 17171, 23947, 34342, 47894, 68684, 69353, 95788, 138706, 277412, 485471, 762883, 970942, 1525766, 1941884, 3051532, 5340181, 10680362, 21360724]

約数ペア:

[(1, 21360724), (2, 10680362), (4, 5340181), (7, 3051532), (11, 1941884), (14, 1525766), (22, 970942), (28, 762883), (44, 485471), (77, 277412), (154, 138706), (223, 95788), (308, 69353), (311, 68684), (446, 47894), (622, 34342), (892, 23947), (1244, 17171), (1561, 13684), (2177, 9812), (2453, 8708), (3122, 6842), (3421, 6244), (4354, 4906)]