201218661

素因数分解:

$3^4\times 7^1\times {\mathrm{354883}}^1$

素因数の和:354902

約数の個数: 20

約数和(自身を含む): 343527712

約数和(自身を除く): 142309051

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 354883, 1064649, 2484181, 3193947, 7452543, 9581841, 22357629, 28745523, 67072887, 201218661]

約数ペア:

[(1, 201218661), (3, 67072887), (7, 28745523), (9, 22357629), (21, 9581841), (27, 7452543), (63, 3193947), (81, 2484181), (189, 1064649), (567, 354883)]