16906887

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4441}}^1$

素因数の和:4500

約数の個数: 20

約数和(自身を含む): 25799136

約数和(自身を除く): 8892249

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4441, 13323, 39969, 119907, 208727, 359721, 626181, 1878543, 5635629, 16906887]

約数ペア:

[(1, 16906887), (3, 5635629), (9, 1878543), (27, 626181), (47, 359721), (81, 208727), (141, 119907), (423, 39969), (1269, 13323), (3807, 4441)]