21462891

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9787}}^1$

素因数の和:9850

約数の個数: 16

約数和(自身を含む): 31008384

約数和(自身を除く): 9545493

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9787, 29361, 166379, 420841, 499137, 1262523, 7154297, 21462891]

約数ペア:

[(1, 21462891), (3, 7154297), (17, 1262523), (43, 499137), (51, 420841), (129, 166379), (731, 29361), (2193, 9787)]