138278315539

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1126421}}^1$

素因数の和:1126531

約数の個数: 32

約数和(自身を含む): 181669340160

約数和(自身を除く): 43391024621

約数列:

[1, 7, 13, 19, 71, 91, 133, 247, 497, 923, 1349, 1729, 6461, 9443, 17537, 122759, 1126421, 7884947, 14643473, 21401999, 79975891, 102504311, 149813993, 278225987, 559831237, 1039686583, 1519541929, 1947581909, 7277806081, 10636793503, 19754045077, 138278315539]

約数ペア:

[(1, 138278315539), (7, 19754045077), (13, 10636793503), (19, 7277806081), (71, 1947581909), (91, 1519541929), (133, 1039686583), (247, 559831237), (497, 278225987), (923, 149813993), (1349, 102504311), (1729, 79975891), (6461, 21401999), (9443, 14643473), (17537, 7884947), (122759, 1126421)]