19281812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{438223}}^1$

素因数の和:438238

約数の個数: 12

約数和(自身を含む): 36810816

約数和(自身を除く): 17529004

約数列:

[1, 2, 4, 11, 22, 44, 438223, 876446, 1752892, 4820453, 9640906, 19281812]

約数ペア:

[(1, 19281812), (2, 9640906), (4, 4820453), (11, 1752892), (22, 876446), (44, 438223)]