20387836

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2017}}^1$

素因数の和:2066

約数の個数: 36

約数和(自身を含む): 43056048

約数和(自身を除く): 22668212

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2017, 2527, 4034, 5054, 8068, 10108, 14119, 28238, 38323, 56476, 76646, 153292, 268261, 536522, 728137, 1073044, 1456274, 2912548, 5096959, 10193918, 20387836]

約数ペア:

[(1, 20387836), (2, 10193918), (4, 5096959), (7, 2912548), (14, 1456274), (19, 1073044), (28, 728137), (38, 536522), (76, 268261), (133, 153292), (266, 76646), (361, 56476), (532, 38323), (722, 28238), (1444, 14119), (2017, 10108), (2527, 8068), (4034, 5054)]