20201701

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 22619520

約数和(自身を除く): 2417819

約数列:

[1, 13, 43, 71, 509, 559, 923, 3053, 6617, 21887, 36139, 39689, 284531, 469807, 1553977, 20201701]

約数ペア:

[(1, 20201701), (13, 1553977), (43, 469807), (71, 284531), (509, 39689), (559, 36139), (923, 21887), (3053, 6617)]