20561574

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{311539}}^1$

素因数の和:311555

約数の個数: 16

約数和(自身を含む): 44861760

約数和(自身を除く): 24300186

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 311539, 623078, 934617, 1869234, 3426929, 6853858, 10280787, 20561574]

約数ペア:

[(1, 20561574), (2, 10280787), (3, 6853858), (6, 3426929), (11, 1869234), (22, 934617), (33, 623078), (66, 311539)]