21820643

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 2564893

約数列:

[1, 13, 47, 71, 503, 611, 923, 3337, 6539, 23641, 35713, 43381, 307333, 464269, 1678511, 21820643]

約数ペア:

[(1, 21820643), (13, 1678511), (47, 464269), (71, 307333), (503, 43381), (611, 35713), (923, 23641), (3337, 6539)]