21056871

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{22003}}^1$

素因数の和:22046

約数の個数: 16

約数和(自身を含む): 31685760

約数和(自身を除く): 10628889

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 22003, 66009, 242033, 638087, 726099, 1914261, 7018957, 21056871]

約数ペア:

[(1, 21056871), (3, 7018957), (11, 1914261), (29, 726099), (33, 638087), (87, 242033), (319, 66009), (957, 22003)]