21109803

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49207}}^1$

素因数の和:49234

約数の個数: 16

約数和(自身を含む): 33067776

約数和(自身を除く): 11957973

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49207, 147621, 541277, 639691, 1623831, 1919073, 7036601, 21109803]

約数ペア:

[(1, 21109803), (3, 7036601), (11, 1919073), (13, 1623831), (33, 639691), (39, 541277), (143, 147621), (429, 49207)]