21854414

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:887

約数の個数: 16

約数和(自身を含む): 33331200

約数和(自身を除く): 11476786

約数列:

[1, 2, 127, 139, 254, 278, 619, 1238, 17653, 35306, 78613, 86041, 157226, 172082, 10927207, 21854414]

約数ペア:

[(1, 21854414), (2, 10927207), (127, 172082), (139, 157226), (254, 86041), (278, 78613), (619, 35306), (1238, 17653)]