20390578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1\times {\mathrm{1201}}^1$

素因数の和:1869

約数の個数: 16

約数和(自身を含む): 33016536

約数和(自身を除く): 12625958

約数列:

[1, 2, 13, 26, 653, 1201, 1306, 2402, 8489, 15613, 16978, 31226, 784253, 1568506, 10195289, 20390578]

約数ペア:

[(1, 20390578), (2, 10195289), (13, 1568506), (26, 784253), (653, 31226), (1201, 16978), (1306, 15613), (2402, 8489)]