21667965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131321}}^1$

素因数の和:131340

約数の個数: 16

約数和(自身を含む): 37820736

約数和(自身を除く): 16152771

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131321, 393963, 656605, 1444531, 1969815, 4333593, 7222655, 21667965]

約数ペア:

[(1, 21667965), (3, 7222655), (5, 4333593), (11, 1969815), (15, 1444531), (33, 656605), (55, 393963), (165, 131321)]