12891891

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:1010

約数の個数: 16

約数和(自身を含む): 18031104

約数和(自身を除く): 5139213

約数列:

[1, 3, 23, 69, 257, 727, 771, 2181, 5911, 16721, 17733, 50163, 186839, 560517, 4297297, 12891891]

約数ペア:

[(1, 12891891), (3, 4297297), (23, 560517), (69, 186839), (257, 50163), (727, 17733), (771, 16721), (2181, 5911)]