20210289

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{1171}}^1$

素因数の和:1708

約数の個数: 16

約数和(自身を含む): 29478144

約数和(自身を除く): 9267855

約数列:

[1, 3, 11, 33, 523, 1171, 1569, 3513, 5753, 12881, 17259, 38643, 612433, 1837299, 6736763, 20210289]

約数ペア:

[(1, 20210289), (3, 6736763), (11, 1837299), (33, 612433), (523, 38643), (1171, 17259), (1569, 12881), (3513, 5753)]