21186326

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{4079}}^1$

素因数の和:4148

約数の個数: 24

約数和(自身を含む): 37674720

約数和(自身を除く): 16488394

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 4079, 5194, 8158, 28553, 57106, 199871, 216187, 399742, 432374, 1513309, 3026618, 10593163, 21186326]

約数ペア:

[(1, 21186326), (2, 10593163), (7, 3026618), (14, 1513309), (49, 432374), (53, 399742), (98, 216187), (106, 199871), (371, 57106), (742, 28553), (2597, 8158), (4079, 5194)]