21300276

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{313}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 51274944

約数和(自身を除く): 29974668

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 107, 159, 212, 214, 313, 318, 321, 428, 626, 636, 642, 939, 1252, 1284, 1878, 3756, 5671, 11342, 16589, 17013, 22684, 33178, 33491, 34026, 49767, 66356, 66982, 68052, 99534, 100473, 133964, 199068, 200946, 401892, 1775023, 3550046, 5325069, 7100092, 10650138, 21300276]

約数ペア:

[(1, 21300276), (2, 10650138), (3, 7100092), (4, 5325069), (6, 3550046), (12, 1775023), (53, 401892), (106, 200946), (107, 199068), (159, 133964), (212, 100473), (214, 99534), (313, 68052), (318, 66982), (321, 66356), (428, 49767), (626, 34026), (636, 33491), (642, 33178), (939, 22684), (1252, 17013), (1284, 16589), (1878, 11342), (3756, 5671)]