80491887

素因数分解:

$3^4\times 7^1\times {\mathrm{141961}}^1$

素因数の和:141980

約数の個数: 20

約数和(自身を含む): 137419216

約数和(自身を除く): 56927329

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 141961, 425883, 993727, 1277649, 2981181, 3832947, 8943543, 11498841, 26830629, 80491887]

約数ペア:

[(1, 80491887), (3, 26830629), (7, 11498841), (9, 8943543), (21, 3832947), (27, 2981181), (63, 1277649), (81, 993727), (189, 425883), (567, 141961)]