19211964002

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{761}}^1\times {\mathrm{2129}}^1$

素因数の和:2928

約数の個数: 72

約数和(自身を含む): 36913253580

約数和(自身を除く): 17701289578

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 121, 154, 242, 539, 761, 847, 1078, 1522, 1694, 2129, 4258, 5327, 5929, 8371, 10654, 11858, 14903, 16742, 23419, 29806, 37289, 46838, 58597, 74578, 92081, 104321, 117194, 163933, 184162, 208642, 257609, 327866, 410179, 515218, 644567, 820358, 1147531, 1289134, 1620169, 1803263, 2295062, 3240338, 3606526, 4511969, 9023938, 11341183, 12622841, 17821859, 22682366, 25245682, 35643718, 79388281, 124753013, 158776562, 196040449, 249506026, 392080898, 873271091, 1372283143, 1746542182, 2744566286, 9605982001, 19211964002]

約数ペア:

[(1, 19211964002), (2, 9605982001), (7, 2744566286), (11, 1746542182), (14, 1372283143), (22, 873271091), (49, 392080898), (77, 249506026), (98, 196040449), (121, 158776562), (154, 124753013), (242, 79388281), (539, 35643718), (761, 25245682), (847, 22682366), (1078, 17821859), (1522, 12622841), (1694, 11341183), (2129, 9023938), (4258, 4511969), (5327, 3606526), (5929, 3240338), (8371, 2295062), (10654, 1803263), (11858, 1620169), (14903, 1289134), (16742, 1147531), (23419, 820358), (29806, 644567), (37289, 515218), (46838, 410179), (58597, 327866), (74578, 257609), (92081, 208642), (104321, 184162), (117194, 163933)]