21140612

素因数分解:

$2^2\times {\mathrm{971}}^1\times {\mathrm{5443}}^1$

素因数の和:6418

約数の個数: 12

約数和(自身を含む): 37040976

約数和(自身を除く): 15900364

約数列:

[1, 2, 4, 971, 1942, 3884, 5443, 10886, 21772, 5285153, 10570306, 21140612]

約数ペア:

[(1, 21140612), (2, 10570306), (4, 5285153), (971, 21772), (1942, 10886), (3884, 5443)]