19281284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{438211}}^1$

素因数の和:438226

約数の個数: 12

約数和(自身を含む): 36809808

約数和(自身を除く): 17528524

約数列:

[1, 2, 4, 11, 22, 44, 438211, 876422, 1752844, 4820321, 9640642, 19281284]

約数ペア:

[(1, 19281284), (2, 9640642), (4, 4820321), (11, 1752844), (22, 876422), (44, 438211)]