27998971

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 38158848

約数和(自身を除く): 10159877

約数列:

[1, 7, 11, 13, 77, 83, 91, 143, 337, 581, 913, 1001, 1079, 2359, 3707, 4381, 6391, 7553, 11869, 25949, 27971, 30667, 48191, 83083, 195797, 307681, 337337, 363623, 2153767, 2545361, 3999853, 27998971]

約数ペア:

[(1, 27998971), (7, 3999853), (11, 2545361), (13, 2153767), (77, 363623), (83, 337337), (91, 307681), (143, 195797), (337, 83083), (581, 48191), (913, 30667), (1001, 27971), (1079, 25949), (2359, 11869), (3707, 7553), (4381, 6391)]