21328326

素因数分解:

$2^1\times 3^3\times {\mathrm{394969}}^1$

素因数の和:394980

約数の個数: 16

約数和(自身を含む): 47396400

約数和(自身を除く): 26068074

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394969, 789938, 1184907, 2369814, 3554721, 7109442, 10664163, 21328326]

約数ペア:

[(1, 21328326), (2, 10664163), (3, 7109442), (6, 3554721), (9, 2369814), (18, 1184907), (27, 789938), (54, 394969)]