20739103

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 26634960

約数和(自身を除く): 5895857

約数列:

[1, 7, 11, 49, 77, 109, 353, 539, 763, 1199, 2471, 3883, 5341, 8393, 17297, 27181, 38477, 58751, 190267, 269339, 423247, 1885373, 2962729, 20739103]

約数ペア:

[(1, 20739103), (7, 2962729), (11, 1885373), (49, 423247), (77, 269339), (109, 190267), (353, 58751), (539, 38477), (763, 27181), (1199, 17297), (2471, 8393), (3883, 5341)]