209719989

素因数分解:

$3^3\times {\mathrm{307}}^1\times {\mathrm{25301}}^1$

素因数の和:25617

約数の個数: 16

約数和(自身を含む): 311720640

約数和(自身を除く): 102000651

約数列:

[1, 3, 9, 27, 307, 921, 2763, 8289, 25301, 75903, 227709, 683127, 7767407, 23302221, 69906663, 209719989]

約数ペア:

[(1, 209719989), (3, 69906663), (9, 23302221), (27, 7767407), (307, 683127), (921, 227709), (2763, 75903), (8289, 25301)]