21000786609

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{68041}}^1$

素因数の和:68301

約数の個数: 32

約数和(自身を含む): 31353753600

約数和(自身を除く): 10352966991

約数列:

[1, 3, 11, 33, 47, 141, 199, 517, 597, 1551, 2189, 6567, 9353, 28059, 68041, 102883, 204123, 308649, 748451, 2245353, 3197927, 9593781, 13540159, 35177197, 40620477, 105531591, 148941749, 446825247, 636387473, 1909162419, 7000262203, 21000786609]

約数ペア:

[(1, 21000786609), (3, 7000262203), (11, 1909162419), (33, 636387473), (47, 446825247), (141, 148941749), (199, 105531591), (517, 40620477), (597, 35177197), (1551, 13540159), (2189, 9593781), (6567, 3197927), (9353, 2245353), (28059, 748451), (68041, 308649), (102883, 204123)]