21236336

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120661}}^1$

素因数の和:120680

約数の個数: 20

約数和(自身を含む): 44886264

約数和(自身を除く): 23649928

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120661, 241322, 482644, 965288, 1327271, 1930576, 2654542, 5309084, 10618168, 21236336]

約数ペア:

[(1, 21236336), (2, 10618168), (4, 5309084), (8, 2654542), (11, 1930576), (16, 1327271), (22, 965288), (44, 482644), (88, 241322), (176, 120661)]