20496475321

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1\times {\mathrm{2683}}^1$

素因数の和:3589

約数の個数: 32

約数和(自身を含む): 25044940800

約数和(自身を除く): 4548465479

約数列:

[1, 7, 19, 71, 133, 497, 809, 1349, 2683, 5663, 9443, 15371, 18781, 50977, 57439, 107597, 190493, 356839, 402073, 1091341, 1333451, 2170547, 3619367, 7639387, 15193829, 25335569, 41240393, 154108837, 288682751, 1078761859, 2928067903, 20496475321]

約数ペア:

[(1, 20496475321), (7, 2928067903), (19, 1078761859), (71, 288682751), (133, 154108837), (497, 41240393), (809, 25335569), (1349, 15193829), (2683, 7639387), (5663, 3619367), (9443, 2170547), (15371, 1333451), (18781, 1091341), (50977, 402073), (57439, 356839), (107597, 190493)]