20319299

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 7549885

約数列:

[1, 7, 11, 13, 53, 77, 91, 143, 371, 383, 583, 689, 1001, 2681, 4081, 4213, 4823, 4979, 7579, 20299, 29491, 34853, 53053, 54769, 142093, 223289, 263887, 383383, 1563023, 1847209, 2902757, 20319299]

約数ペア:

[(1, 20319299), (7, 2902757), (11, 1847209), (13, 1563023), (53, 383383), (77, 263887), (91, 223289), (143, 142093), (371, 54769), (383, 53053), (583, 34853), (689, 29491), (1001, 20299), (2681, 7579), (4081, 4979), (4213, 4823)]