21139426

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12479}}^1$

素因数の和:12510

約数の個数: 24

約数和(自身を含む): 39836160

約数和(自身を除く): 18696734

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12479, 24958, 87353, 137269, 174706, 274538, 960883, 1509959, 1921766, 3019918, 10569713, 21139426]

約数ペア:

[(1, 21139426), (2, 10569713), (7, 3019918), (11, 1921766), (14, 1509959), (22, 960883), (77, 274538), (121, 174706), (154, 137269), (242, 87353), (847, 24958), (1694, 12479)]