217631726

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{19421}}^1$

素因数の和:19867

約数の個数: 16

約数和(自身を含む): 352392768

約数和(自身を除く): 134761042

約数列:

[1, 2, 13, 26, 431, 862, 5603, 11206, 19421, 38842, 252473, 504946, 8370451, 16740902, 108815863, 217631726]

約数ペア:

[(1, 217631726), (2, 108815863), (13, 16740902), (26, 8370451), (431, 504946), (862, 252473), (5603, 38842), (11206, 19421)]