28390791

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{66179}}^1$

素因数の和:66206

約数の個数: 16

約数和(自身を含む): 44472960

約数和(自身を除く): 16082169

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 66179, 198537, 727969, 860327, 2183907, 2580981, 9463597, 28390791]

約数ペア:

[(1, 28390791), (3, 9463597), (11, 2580981), (13, 2183907), (33, 860327), (39, 727969), (143, 198537), (429, 66179)]