28431351

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{81001}}^1$

素因数の和:81023

約数の個数: 16

約数和(自身を含む): 45361120

約数和(自身を除く): 16929769

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 81001, 243003, 729009, 1053013, 2187027, 3159039, 9477117, 28431351]

約数ペア:

[(1, 28431351), (3, 9477117), (9, 3159039), (13, 2187027), (27, 1053013), (39, 729009), (117, 243003), (351, 81001)]