21320120936

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1\times {\mathrm{2357}}^1$

素因数の和:2826

約数の個数: 64

約数和(自身を含む): 41832806400

約数和(自身を除く): 20512685464

約数列:

[1, 2, 4, 8, 29, 58, 116, 127, 232, 254, 307, 508, 614, 1016, 1228, 2357, 2456, 3683, 4714, 7366, 8903, 9428, 14732, 17806, 18856, 29464, 35612, 38989, 68353, 71224, 77978, 136706, 155956, 273412, 299339, 311912, 546824, 598678, 723599, 1130681, 1197356, 1447198, 2261362, 2394712, 2894396, 4522724, 5788792, 8680831, 9045448, 17361662, 20984371, 34723324, 41968742, 69446648, 83937484, 91897073, 167874968, 183794146, 367588292, 735176584, 2665015117, 5330030234, 10660060468, 21320120936]

約数ペア:

[(1, 21320120936), (2, 10660060468), (4, 5330030234), (8, 2665015117), (29, 735176584), (58, 367588292), (116, 183794146), (127, 167874968), (232, 91897073), (254, 83937484), (307, 69446648), (508, 41968742), (614, 34723324), (1016, 20984371), (1228, 17361662), (2357, 9045448), (2456, 8680831), (3683, 5788792), (4714, 4522724), (7366, 2894396), (8903, 2394712), (9428, 2261362), (14732, 1447198), (17806, 1197356), (18856, 1130681), (29464, 723599), (35612, 598678), (38989, 546824), (68353, 311912), (71224, 299339), (77978, 273412), (136706, 155956)]