20497203

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{32077}}^1$

素因数の和:32154

約数の個数: 12

約数和(自身を含む): 30025008

約数和(自身を除く): 9527805

約数列:

[1, 3, 9, 71, 213, 639, 32077, 96231, 288693, 2277467, 6832401, 20497203]

約数ペア:

[(1, 20497203), (3, 6832401), (9, 2277467), (71, 288693), (213, 96231), (639, 32077)]