20515563

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{99109}}^1$

素因数の和:99138

約数の個数: 12

約数和(自身を含む): 30922320

約数和(自身を除く): 10406757

約数列:

[1, 3, 9, 23, 69, 207, 99109, 297327, 891981, 2279507, 6838521, 20515563]

約数ペア:

[(1, 20515563), (3, 6838521), (9, 2279507), (23, 891981), (69, 297327), (207, 99109)]