21088551

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37591}}^1$

素因数の和:37622

約数の個数: 16

約数和(自身を含む): 32479488

約数和(自身を除く): 11390937

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37591, 112773, 413501, 639047, 1240503, 1917141, 7029517, 21088551]

約数ペア:

[(1, 21088551), (3, 7029517), (11, 1917141), (17, 1240503), (33, 639047), (51, 413501), (187, 112773), (561, 37591)]