209705705

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{31511}}^1$

素因数の和:31549

約数の個数: 16

約数和(自身を含む): 276801408

約数和(自身を除く): 67095703

約数列:

[1, 5, 11, 55, 121, 605, 1331, 6655, 31511, 157555, 346621, 1733105, 3812831, 19064155, 41941141, 209705705]

約数ペア:

[(1, 209705705), (5, 41941141), (11, 19064155), (55, 3812831), (121, 1733105), (605, 346621), (1331, 157555), (6655, 31511)]