20477265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 35012736

約数和(自身を除く): 14535471

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 613, 655, 1839, 1965, 2227, 3065, 6681, 9195, 10421, 11135, 31263, 33405, 52105, 80303, 156315, 240909, 401515, 1204545, 1365151, 4095453, 6825755, 20477265]

約数ペア:

[(1, 20477265), (3, 6825755), (5, 4095453), (15, 1365151), (17, 1204545), (51, 401515), (85, 240909), (131, 156315), (255, 80303), (393, 52105), (613, 33405), (655, 31263), (1839, 11135), (1965, 10421), (2227, 9195), (3065, 6681)]