20804589

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4337}}^1$

素因数の和:4397

約数の個数: 24

約数和(自身を含む): 33159672

約数和(自身を除く): 12355083

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4337, 4797, 13011, 39033, 56381, 169143, 177817, 507429, 533451, 1600353, 2311621, 6934863, 20804589]

約数ペア:

[(1, 20804589), (3, 6934863), (9, 2311621), (13, 1600353), (39, 533451), (41, 507429), (117, 177817), (123, 169143), (369, 56381), (533, 39033), (1599, 13011), (4337, 4797)]