19387109

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2221}}^1$

素因数の和:2300

約数の個数: 16

約数和(自身を含む): 23464320

約数和(自身を除く): 4077211

約数列:

[1, 7, 29, 43, 203, 301, 1247, 2221, 8729, 15547, 64409, 95503, 450863, 668521, 2769587, 19387109]

約数ペア:

[(1, 19387109), (7, 2769587), (29, 668521), (43, 450863), (203, 95503), (301, 64409), (1247, 15547), (2221, 8729)]