21269721

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33923}}^1$

素因数の和:33956

約数の個数: 16

約数和(自身を含む): 32567040

約数和(自身を除く): 11297319

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33923, 101769, 373153, 644537, 1119459, 1933611, 7089907, 21269721]

約数ペア:

[(1, 21269721), (3, 7089907), (11, 1933611), (19, 1119459), (33, 644537), (57, 373153), (209, 101769), (627, 33923)]