18811804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{427541}}^1$

素因数の和:427556

約数の個数: 12

約数和(自身を含む): 35913528

約数和(自身を除く): 17101724

約数列:

[1, 2, 4, 11, 22, 44, 427541, 855082, 1710164, 4702951, 9405902, 18811804]

約数ペア:

[(1, 18811804), (2, 9405902), (4, 4702951), (11, 1710164), (22, 855082), (44, 427541)]