205479911

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{449}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 261273600

約数和(自身を除く): 55793689

約数列:

[1, 7, 13, 47, 91, 107, 329, 449, 611, 749, 1391, 3143, 4277, 5029, 5837, 9737, 21103, 35203, 40859, 48043, 65377, 147721, 274339, 336301, 457639, 624559, 1920373, 2258021, 4371913, 15806147, 29354273, 205479911]

約数ペア:

[(1, 205479911), (7, 29354273), (13, 15806147), (47, 4371913), (91, 2258021), (107, 1920373), (329, 624559), (449, 457639), (611, 336301), (749, 274339), (1391, 147721), (3143, 65377), (4277, 48043), (5029, 40859), (5837, 35203), (9737, 21103)]