18121103

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 24955392

約数和(自身を除く): 6834289

約数列:

[1, 7, 11, 13, 43, 77, 91, 143, 301, 421, 473, 559, 1001, 2947, 3311, 3913, 4631, 5473, 6149, 18103, 32417, 38311, 43043, 60203, 126721, 199133, 235339, 421421, 1393931, 1647373, 2588729, 18121103]

約数ペア:

[(1, 18121103), (7, 2588729), (11, 1647373), (13, 1393931), (43, 421421), (77, 235339), (91, 199133), (143, 126721), (301, 60203), (421, 43043), (473, 38311), (559, 32417), (1001, 18103), (2947, 6149), (3311, 5473), (3913, 4631)]