21000337479

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{70708207}}^1$

素因数の和:70708227

約数の個数: 16

約数和(自身を含む): 33939939840

約数和(自身を除く): 12939602361

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 70708207, 212124621, 636373863, 777790277, 1909121589, 2333370831, 7000112493, 21000337479]

約数ペア:

[(1, 21000337479), (3, 7000112493), (9, 2333370831), (11, 1909121589), (27, 777790277), (33, 636373863), (99, 212124621), (297, 70708207)]