2878893

素因数分解:

$3^2\times {\mathrm{43}}^2\times {\mathrm{173}}^1$

素因数の和:265

約数の個数: 18

約数和(自身を含む): 4281966

約数和(自身を除く): 1403073

約数列:

[1, 3, 9, 43, 129, 173, 387, 519, 1557, 1849, 5547, 7439, 16641, 22317, 66951, 319877, 959631, 2878893]

約数ペア:

[(1, 2878893), (3, 959631), (9, 319877), (43, 66951), (129, 22317), (173, 16641), (387, 7439), (519, 5547), (1557, 1849)]