18731986

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5417}}^1$

素因数の和:5458

約数の個数: 32

約数和(自身を含む): 36408960

約数和(自身を除く): 17676974

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 5417, 10834, 37919, 70421, 75838, 102923, 140842, 205846, 492947, 720461, 985894, 1337999, 1440922, 2675998, 9365993, 18731986]

約数ペア:

[(1, 18731986), (2, 9365993), (7, 2675998), (13, 1440922), (14, 1337999), (19, 985894), (26, 720461), (38, 492947), (91, 205846), (133, 140842), (182, 102923), (247, 75838), (266, 70421), (494, 37919), (1729, 10834), (3458, 5417)]