21581211

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{10321}}^1$

素因数の和:10382

約数の個数: 16

約数和(自身を含む): 31213728

約数和(自身を除く): 9632517

約数列:

[1, 3, 17, 41, 51, 123, 697, 2091, 10321, 30963, 175457, 423161, 526371, 1269483, 7193737, 21581211]

約数ペア:

[(1, 21581211), (3, 7193737), (17, 1269483), (41, 526371), (51, 423161), (123, 175457), (697, 30963), (2091, 10321)]