20684272

素因数分解:

$2^4\times 7^3\times {\mathrm{3769}}^1$

素因数の和:3798

約数の個数: 40

約数和(自身を含む): 46748000

約数和(自身を除く): 26063728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3769, 5488, 7538, 15076, 26383, 30152, 52766, 60304, 105532, 184681, 211064, 369362, 422128, 738724, 1292767, 1477448, 2585534, 2954896, 5171068, 10342136, 20684272]

約数ペア:

[(1, 20684272), (2, 10342136), (4, 5171068), (7, 2954896), (8, 2585534), (14, 1477448), (16, 1292767), (28, 738724), (49, 422128), (56, 369362), (98, 211064), (112, 184681), (196, 105532), (343, 60304), (392, 52766), (686, 30152), (784, 26383), (1372, 15076), (2744, 7538), (3769, 5488)]