28390713

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{5557}}^1$

素因数の和:5704

約数の個数: 16

約数和(自身を含む): 41084736

約数和(自身を除く): 12694023

約数列:

[1, 3, 13, 39, 131, 393, 1703, 5109, 5557, 16671, 72241, 216723, 727967, 2183901, 9463571, 28390713]

約数ペア:

[(1, 28390713), (3, 9463571), (13, 2183901), (39, 727967), (131, 216723), (393, 72241), (1703, 16671), (5109, 5557)]