21264594

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 46888992

約数和(自身を除く): 25624398

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 169, 201, 313, 338, 402, 507, 626, 871, 939, 1014, 1742, 1878, 2613, 4069, 5226, 8138, 11323, 12207, 20971, 22646, 24414, 33969, 41942, 52897, 62913, 67938, 105794, 125826, 158691, 272623, 317382, 545246, 817869, 1635738, 3544099, 7088198, 10632297, 21264594]

約数ペア:

[(1, 21264594), (2, 10632297), (3, 7088198), (6, 3544099), (13, 1635738), (26, 817869), (39, 545246), (67, 317382), (78, 272623), (134, 158691), (169, 125826), (201, 105794), (313, 67938), (338, 62913), (402, 52897), (507, 41942), (626, 33969), (871, 24414), (939, 22646), (1014, 20971), (1742, 12207), (1878, 11323), (2613, 8138), (4069, 5226)]