81492009

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{1439}}^1$

素因数の和:1924

約数の個数: 16

約数和(自身を含む): 111513600

約数和(自身を除く): 30021591

約数列:

[1, 3, 43, 129, 439, 1317, 1439, 4317, 18877, 56631, 61877, 185631, 631721, 1895163, 27164003, 81492009]

約数ペア:

[(1, 81492009), (3, 27164003), (43, 1895163), (129, 631721), (439, 185631), (1317, 61877), (1439, 56631), (4317, 18877)]