20850137

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 26790912

約数和(自身を除く): 5940775

約数列:

[1, 7, 11, 49, 77, 101, 383, 539, 707, 1111, 2681, 4213, 4949, 7777, 18767, 29491, 38683, 54439, 206437, 270781, 425513, 1895467, 2978591, 20850137]

約数ペア:

[(1, 20850137), (7, 2978591), (11, 1895467), (49, 425513), (77, 270781), (101, 206437), (383, 54439), (539, 38683), (707, 29491), (1111, 18767), (2681, 7777), (4213, 4949)]