20216502561

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{971}}^1\times {\mathrm{408241}}^1$

素因数の和:409232

約数の個数: 16

約数和(自身を含む): 28570408128

約数和(自身を除く): 8353905567

約数列:

[1, 3, 17, 51, 971, 2913, 16507, 49521, 408241, 1224723, 6940097, 20820291, 396402011, 1189206033, 6738834187, 20216502561]

約数ペア:

[(1, 20216502561), (3, 6738834187), (17, 1189206033), (51, 396402011), (971, 20820291), (2913, 6940097), (16507, 1224723), (49521, 408241)]