209213291

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{41453}}^1$

素因数の和:41570

約数の個数: 12

約数和(自身を含む): 245739312

約数和(自身を除く): 36526021

約数列:

[1, 7, 49, 103, 721, 5047, 41453, 290171, 2031197, 4269659, 29887613, 209213291]

約数ペア:

[(1, 209213291), (7, 29887613), (49, 4269659), (103, 2031197), (721, 290171), (5047, 41453)]