19347447

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{3001}}^1$

素因数の和:3318

約数の個数: 16

約数和(自身を含む): 29587712

約数和(自身を除く): 10240265

約数列:

[1, 3, 7, 21, 307, 921, 2149, 3001, 6447, 9003, 21007, 63021, 921307, 2763921, 6449149, 19347447]

約数ペア:

[(1, 19347447), (3, 6449149), (7, 2763921), (21, 921307), (307, 63021), (921, 21007), (2149, 9003), (3001, 6447)]