20304729

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{17489}}^1$

素因数の和:17541

約数の個数: 16

約数和(自身を含む): 30782400

約数和(自身を除く): 10477671

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 17489, 52467, 157401, 472203, 752027, 2256081, 6768243, 20304729]

約数ペア:

[(1, 20304729), (3, 6768243), (9, 2256081), (27, 752027), (43, 472203), (129, 157401), (387, 52467), (1161, 17489)]