208021611

素因数分解:

$3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{6971}}^1$

素因数の和:7024

約数の個数: 32

約数和(自身を含む): 334656000

約数和(自身を除く): 126634389

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 343, 609, 1029, 1421, 4263, 6971, 9947, 20913, 29841, 48797, 146391, 202159, 341579, 606477, 1024737, 1415113, 2391053, 4245339, 7173159, 9905791, 29717373, 69340537, 208021611]

約数ペア:

[(1, 208021611), (3, 69340537), (7, 29717373), (21, 9905791), (29, 7173159), (49, 4245339), (87, 2391053), (147, 1415113), (203, 1024737), (343, 606477), (609, 341579), (1029, 202159), (1421, 146391), (4263, 48797), (6971, 29841), (9947, 20913)]