16906239

素因数分解:

$3^6\times 7^1\times {\mathrm{3313}}^1$

素因数の和:3338

約数の個数: 28

約数和(自身を含む): 28977616

約数和(自身を除く): 12071377

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3313, 5103, 9939, 23191, 29817, 69573, 89451, 208719, 268353, 626157, 805059, 1878471, 2415177, 5635413, 16906239]

約数ペア:

[(1, 16906239), (3, 5635413), (7, 2415177), (9, 1878471), (21, 805059), (27, 626157), (63, 268353), (81, 208719), (189, 89451), (243, 69573), (567, 29817), (729, 23191), (1701, 9939), (3313, 5103)]