128156637

素因数分解:

$3^1\times 7^1\times {\mathrm{857}}^1\times {\mathrm{7121}}^1$

素因数の和:7988

約数の個数: 16

約数和(自身を含む): 195541632

約数和(自身を除く): 67384995

約数列:

[1, 3, 7, 21, 857, 2571, 5999, 7121, 17997, 21363, 49847, 149541, 6102697, 18308091, 42718879, 128156637]

約数ペア:

[(1, 128156637), (3, 42718879), (7, 18308091), (21, 6102697), (857, 149541), (2571, 49847), (5999, 21363), (7121, 17997)]