28218147

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{5171}}^1$

素因数の和:5298

約数の個数: 16

約数和(自身を含む): 40217472

約数和(自身を除く): 11999325

約数列:

[1, 3, 17, 51, 107, 321, 1819, 5171, 5457, 15513, 87907, 263721, 553297, 1659891, 9406049, 28218147]

約数ペア:

[(1, 28218147), (3, 9406049), (17, 1659891), (51, 553297), (107, 263721), (321, 87907), (1819, 15513), (5171, 5457)]