20990508

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{22717}}^1$

素因数の和:22742

約数の個数: 48

約数和(自身を含む): 61065984

約数和(自身を除く): 40075476

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 22717, 45434, 68151, 90868, 136302, 159019, 249887, 272604, 318038, 477057, 499774, 636076, 749661, 954114, 999548, 1499322, 1749209, 1908228, 2998644, 3498418, 5247627, 6996836, 10495254, 20990508]

約数ペア:

[(1, 20990508), (2, 10495254), (3, 6996836), (4, 5247627), (6, 3498418), (7, 2998644), (11, 1908228), (12, 1749209), (14, 1499322), (21, 999548), (22, 954114), (28, 749661), (33, 636076), (42, 499774), (44, 477057), (66, 318038), (77, 272604), (84, 249887), (132, 159019), (154, 136302), (231, 90868), (308, 68151), (462, 45434), (924, 22717)]