138720099

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{21517}}^1$

素因数の和:21834

約数の個数: 16

約数和(自身を含む): 212081408

約数和(自身を除く): 73361309

約数列:

[1, 3, 7, 21, 307, 921, 2149, 6447, 21517, 64551, 150619, 451857, 6605719, 19817157, 46240033, 138720099]

約数ペア:

[(1, 138720099), (3, 46240033), (7, 19817157), (21, 6605719), (307, 451857), (921, 150619), (2149, 64551), (6447, 21517)]