205850421

素因数分解:

$3^2\times 7^3\times {\mathrm{66683}}^1$

素因数の和:66710

約数の個数: 24

約数和(自身を含む): 346756800

約数和(自身を除く): 140906379

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 66683, 200049, 466781, 600147, 1400343, 3267467, 4201029, 9802401, 22872269, 29407203, 68616807, 205850421]

約数ペア:

[(1, 205850421), (3, 68616807), (7, 29407203), (9, 22872269), (21, 9802401), (49, 4201029), (63, 3267467), (147, 1400343), (343, 600147), (441, 466781), (1029, 200049), (3087, 66683)]