20727784

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:84

約数の個数: 144

約数和(自身を含む): 54583200

約数和(自身を除く): 33855416

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 23, 28, 38, 44, 46, 49, 56, 76, 77, 88, 92, 98, 121, 133, 152, 154, 161, 184, 196, 209, 242, 253, 266, 308, 322, 392, 418, 437, 484, 506, 532, 539, 616, 644, 836, 847, 874, 931, 968, 1012, 1064, 1078, 1127, 1288, 1463, 1672, 1694, 1748, 1771, 1862, 2024, 2156, 2254, 2299, 2783, 2926, 3059, 3388, 3496, 3542, 3724, 4312, 4508, 4598, 4807, 5566, 5852, 5929, 6118, 6776, 7084, 7448, 9016, 9196, 9614, 10241, 11132, 11704, 11858, 12236, 12397, 14168, 16093, 18392, 19228, 19481, 20482, 21413, 22264, 23716, 24472, 24794, 32186, 33649, 38456, 38962, 40964, 42826, 47432, 49588, 52877, 64372, 67298, 77924, 81928, 85652, 99176, 105754, 112651, 128744, 134596, 136367, 155848, 171304, 211508, 225302, 235543, 269192, 272734, 370139, 423016, 450604, 471086, 545468, 740278, 901208, 942172, 1090936, 1480556, 1884344, 2590973, 2961112, 5181946, 10363892, 20727784]

約数ペア:

[(1, 20727784), (2, 10363892), (4, 5181946), (7, 2961112), (8, 2590973), (11, 1884344), (14, 1480556), (19, 1090936), (22, 942172), (23, 901208), (28, 740278), (38, 545468), (44, 471086), (46, 450604), (49, 423016), (56, 370139), (76, 272734), (77, 269192), (88, 235543), (92, 225302), (98, 211508), (121, 171304), (133, 155848), (152, 136367), (154, 134596), (161, 128744), (184, 112651), (196, 105754), (209, 99176), (242, 85652), (253, 81928), (266, 77924), (308, 67298), (322, 64372), (392, 52877), (418, 49588), (437, 47432), (484, 42826), (506, 40964), (532, 38962), (539, 38456), (616, 33649), (644, 32186), (836, 24794), (847, 24472), (874, 23716), (931, 22264), (968, 21413), (1012, 20482), (1064, 19481), (1078, 19228), (1127, 18392), (1288, 16093), (1463, 14168), (1672, 12397), (1694, 12236), (1748, 11858), (1771, 11704), (1862, 11132), (2024, 10241), (2156, 9614), (2254, 9196), (2299, 9016), (2783, 7448), (2926, 7084), (3059, 6776), (3388, 6118), (3496, 5929), (3542, 5852), (3724, 5566), (4312, 4807), (4508, 4598)]