21131848108

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3533}}^1\times {\mathrm{11243}}^1$

素因数の和:14806

約数の個数: 48

約数和(自身を含む): 44504651520

約数和(自身を除く): 23372803412

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 3533, 7066, 11243, 14132, 22486, 24731, 44972, 49462, 67127, 78701, 98924, 134254, 157402, 213617, 268508, 314804, 427234, 469889, 854468, 939778, 1495319, 1879556, 2990638, 5981276, 39721519, 79443038, 158886076, 278050633, 556101266, 754708861, 1112202532, 1509417722, 3018835444, 5282962027, 10565924054, 21131848108]

約数ペア:

[(1, 21131848108), (2, 10565924054), (4, 5282962027), (7, 3018835444), (14, 1509417722), (19, 1112202532), (28, 754708861), (38, 556101266), (76, 278050633), (133, 158886076), (266, 79443038), (532, 39721519), (3533, 5981276), (7066, 2990638), (11243, 1879556), (14132, 1495319), (22486, 939778), (24731, 854468), (44972, 469889), (49462, 427234), (67127, 314804), (78701, 268508), (98924, 213617), (134254, 157402)]