21056277

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{587}}^1\times {\mathrm{1087}}^1$

素因数の和:1688

約数の個数: 16

約数和(自身を含む): 30707712

約数和(自身を除く): 9651435

約数列:

[1, 3, 11, 33, 587, 1087, 1761, 3261, 6457, 11957, 19371, 35871, 638069, 1914207, 7018759, 21056277]

約数ペア:

[(1, 21056277), (3, 7018759), (11, 1914207), (33, 638069), (587, 35871), (1087, 19371), (1761, 11957), (3261, 6457)]