20553207

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:702

約数の個数: 16

約数和(自身を含む): 27941760

約数和(自身を除く): 7388553

約数列:

[1, 3, 83, 197, 249, 419, 591, 1257, 16351, 34777, 49053, 82543, 104331, 247629, 6851069, 20553207]

約数ペア:

[(1, 20553207), (3, 6851069), (83, 247629), (197, 104331), (249, 82543), (419, 49053), (591, 34777), (1257, 16351)]