20173685987

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{9739}}^1$

素因数の和:9892

約数の個数: 48

約数和(自身を含む): 26693521920

約数和(自身を除く): 6519835933

約数列:

[1, 7, 13, 17, 91, 103, 119, 169, 221, 721, 1183, 1339, 1547, 1751, 2873, 9373, 9739, 12257, 17407, 20111, 22763, 68173, 121849, 126607, 159341, 165563, 295919, 886249, 1003117, 1158941, 1645891, 2071433, 2152319, 7021819, 11521237, 13040521, 15066233, 17052989, 27980147, 91283647, 119370923, 169526773, 195861029, 221688857, 1186687411, 1551821999, 2881955141, 20173685987]

約数ペア:

[(1, 20173685987), (7, 2881955141), (13, 1551821999), (17, 1186687411), (91, 221688857), (103, 195861029), (119, 169526773), (169, 119370923), (221, 91283647), (721, 27980147), (1183, 17052989), (1339, 15066233), (1547, 13040521), (1751, 11521237), (2873, 7021819), (9373, 2152319), (9739, 2071433), (12257, 1645891), (17407, 1158941), (20111, 1003117), (22763, 886249), (68173, 295919), (121849, 165563), (126607, 159341)]