21608710655

素因数分解:

$5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{8819}}^1$

素因数の和:9048

約数の個数: 48

約数和(自身を含む): 30803885280

約数和(自身を除く): 9195174625

約数列:

[1, 5, 7, 35, 49, 73, 137, 245, 365, 511, 685, 959, 2555, 3577, 4795, 6713, 8819, 10001, 17885, 33565, 44095, 50005, 61733, 70007, 308665, 350035, 432131, 490049, 643787, 1208203, 2160655, 2450245, 3218935, 4506509, 6041015, 8457421, 22532545, 31545563, 42287105, 59201947, 88198819, 157727815, 296009735, 440994095, 617391733, 3086958665, 4321742131, 21608710655]

約数ペア:

[(1, 21608710655), (5, 4321742131), (7, 3086958665), (35, 617391733), (49, 440994095), (73, 296009735), (137, 157727815), (245, 88198819), (365, 59201947), (511, 42287105), (685, 31545563), (959, 22532545), (2555, 8457421), (3577, 6041015), (4795, 4506509), (6713, 3218935), (8819, 2450245), (10001, 2160655), (17885, 1208203), (33565, 643787), (44095, 490049), (50005, 432131), (61733, 350035), (70007, 308665)]