20842209

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{941}}^1$

素因数の和:1077

約数の個数: 24

約数和(自身を含む): 31741632

約数和(自身を除く): 10899423

約数列:

[1, 3, 9, 23, 69, 107, 207, 321, 941, 963, 2461, 2823, 7383, 8469, 21643, 22149, 64929, 100687, 194787, 302061, 906183, 2315801, 6947403, 20842209]

約数ペア:

[(1, 20842209), (3, 6947403), (9, 2315801), (23, 906183), (69, 302061), (107, 194787), (207, 100687), (321, 64929), (941, 22149), (963, 21643), (2461, 8469), (2823, 7383)]