21964103

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{19489}}^1$

素因数の和:19526

約数の個数: 12

約数和(自身を含む): 26662320

約数和(自身を除く): 4698217

約数列:

[1, 7, 23, 49, 161, 1127, 19489, 136423, 448247, 954961, 3137729, 21964103]

約数ペア:

[(1, 21964103), (7, 3137729), (23, 954961), (49, 448247), (161, 136423), (1127, 19489)]