21000612352

素因数分解:

$2^9\times {\mathrm{6121}}^1\times {\mathrm{6701}}^1$

素因数の和:12840

約数の個数: 40

約数和(自身を含む): 41973325812

約数和(自身を除く): 20972713460

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 6121, 6701, 12242, 13402, 24484, 26804, 48968, 53608, 97936, 107216, 195872, 214432, 391744, 428864, 783488, 857728, 1566976, 1715456, 3133952, 3430912, 41016821, 82033642, 164067284, 328134568, 656269136, 1312538272, 2625076544, 5250153088, 10500306176, 21000612352]

約数ペア:

[(1, 21000612352), (2, 10500306176), (4, 5250153088), (8, 2625076544), (16, 1312538272), (32, 656269136), (64, 328134568), (128, 164067284), (256, 82033642), (512, 41016821), (6121, 3430912), (6701, 3133952), (12242, 1715456), (13402, 1566976), (24484, 857728), (26804, 783488), (48968, 428864), (53608, 391744), (97936, 214432), (107216, 195872)]