20974017

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 28562688

約数和(自身を除く): 7588671

約数列:

[1, 3, 83, 131, 249, 393, 643, 1929, 10873, 32619, 53369, 84233, 160107, 252699, 6991339, 20974017]

約数ペア:

[(1, 20974017), (3, 6991339), (83, 252699), (131, 160107), (249, 84233), (393, 53369), (643, 32619), (1929, 10873)]