28427139

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{80989}}^1$

素因数の和:81011

約数の個数: 16

約数和(自身を含む): 45354400

約数和(自身を除く): 16927261

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 80989, 242967, 728901, 1052857, 2186703, 3158571, 9475713, 28427139]

約数ペア:

[(1, 28427139), (3, 9475713), (9, 3158571), (13, 2186703), (27, 1052857), (39, 728901), (117, 242967), (351, 80989)]