20204787

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{661}}^1$

素因数の和:1130

約数の個数: 16

約数和(自身を含む): 28217088

約数和(自身を除く): 8012301

約数列:

[1, 3, 23, 69, 443, 661, 1329, 1983, 10189, 15203, 30567, 45609, 292823, 878469, 6734929, 20204787]

約数ペア:

[(1, 20204787), (3, 6734929), (23, 878469), (69, 292823), (443, 45609), (661, 30567), (1329, 15203), (1983, 10189)]