205120909

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{102101}}^1$

素因数の和:102156

約数の個数: 12

約数和(自身を含む): 244432188

約数和(自身を除く): 39311279

約数列:

[1, 7, 41, 49, 287, 2009, 102101, 714707, 4186141, 5002949, 29302987, 205120909]

約数ペア:

[(1, 205120909), (7, 29302987), (41, 5002949), (49, 4186141), (287, 714707), (2009, 102101)]