20831258

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1202

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 17322982

約数列:

[1, 2, 7, 14, 19, 38, 71, 133, 142, 266, 497, 994, 1103, 1349, 2206, 2698, 7721, 9443, 15442, 18886, 20957, 41914, 78313, 146699, 156626, 293398, 548191, 1096382, 1487947, 2975894, 10415629, 20831258]

約数ペア:

[(1, 20831258), (2, 10415629), (7, 2975894), (14, 1487947), (19, 1096382), (38, 548191), (71, 293398), (133, 156626), (142, 146699), (266, 78313), (497, 41914), (994, 20957), (1103, 18886), (1349, 15442), (2206, 9443), (2698, 7721)]