12640401

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{27539}}^1$

素因数の和:27565

約数の個数: 16

約数和(自身を含む): 19828800

約数和(自身を除く): 7188399

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 27539, 82617, 247851, 468163, 743553, 1404489, 4213467, 12640401]

約数ペア:

[(1, 12640401), (3, 4213467), (9, 1404489), (17, 743553), (27, 468163), (51, 247851), (153, 82617), (459, 27539)]