205653897

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{23293}}^1$

素因数の和:23414

約数の個数: 20

約数和(自身を含む): 310043140

約数和(自身を除く): 104389243

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2943, 8829, 23293, 69879, 209637, 628911, 1886733, 2538937, 7616811, 22850433, 68551299, 205653897]

約数ペア:

[(1, 205653897), (3, 68551299), (9, 22850433), (27, 7616811), (81, 2538937), (109, 1886733), (327, 628911), (981, 209637), (2943, 69879), (8829, 23293)]