20136857

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 23769504

約数和(自身を除く): 3632647

約数列:

[1, 13, 17, 43, 163, 169, 221, 559, 731, 2119, 2771, 2873, 7009, 7267, 9503, 27547, 36023, 91117, 119153, 123539, 468299, 1184521, 1548989, 20136857]

約数ペア:

[(1, 20136857), (13, 1548989), (17, 1184521), (43, 468299), (163, 123539), (169, 119153), (221, 91117), (559, 36023), (731, 27547), (2119, 9503), (2771, 7267), (2873, 7009)]