20955153

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:956

約数の個数: 16

約数和(自身を含む): 28588032

約数和(自身を除く): 7632879

約数列:

[1, 3, 71, 131, 213, 393, 751, 2253, 9301, 27903, 53321, 98381, 159963, 295143, 6985051, 20955153]

約数ペア:

[(1, 20955153), (3, 6985051), (71, 295143), (131, 159963), (213, 98381), (393, 53321), (751, 27903), (2253, 9301)]