21989714124

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{187927}}^1$

素因数の和:188147

約数の個数: 72

約数和(自身を含む): 59986617600

約数和(自身を除く): 37996903476

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 199, 294, 398, 588, 597, 796, 1194, 1393, 2388, 2786, 4179, 5572, 8358, 9751, 16716, 19502, 29253, 39004, 58506, 117012, 187927, 375854, 563781, 751708, 1127562, 1315489, 2255124, 2630978, 3946467, 5261956, 7892934, 9208423, 15785868, 18416846, 27625269, 36833692, 37397473, 55250538, 74794946, 110501076, 112192419, 149589892, 224384838, 261782311, 448769676, 523564622, 785346933, 1047129244, 1570693866, 1832476177, 3141387732, 3664952354, 5497428531, 7329904708, 10994857062, 21989714124]

約数ペア:

[(1, 21989714124), (2, 10994857062), (3, 7329904708), (4, 5497428531), (6, 3664952354), (7, 3141387732), (12, 1832476177), (14, 1570693866), (21, 1047129244), (28, 785346933), (42, 523564622), (49, 448769676), (84, 261782311), (98, 224384838), (147, 149589892), (196, 112192419), (199, 110501076), (294, 74794946), (398, 55250538), (588, 37397473), (597, 36833692), (796, 27625269), (1194, 18416846), (1393, 15785868), (2388, 9208423), (2786, 7892934), (4179, 5261956), (5572, 3946467), (8358, 2630978), (9751, 2255124), (16716, 1315489), (19502, 1127562), (29253, 751708), (39004, 563781), (58506, 375854), (117012, 187927)]