19899438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{255121}}^1$

素因数の和:255139

約数の個数: 16

約数和(自身を含む): 42860496

約数和(自身を除く): 22961058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 255121, 510242, 765363, 1530726, 3316573, 6633146, 9949719, 19899438]

約数ペア:

[(1, 19899438), (2, 9949719), (3, 6633146), (6, 3316573), (13, 1530726), (26, 765363), (39, 510242), (78, 255121)]