19913397

素因数分解:

$3^1\times 7^1\times {\mathrm{673}}^1\times {\mathrm{1409}}^1$

素因数の和:2092

約数の個数: 16

約数和(自身を含む): 30410880

約数和(自身を除く): 10497483

約数列:

[1, 3, 7, 21, 673, 1409, 2019, 4227, 4711, 9863, 14133, 29589, 948257, 2844771, 6637799, 19913397]

約数ペア:

[(1, 19913397), (3, 6637799), (7, 2844771), (21, 948257), (673, 29589), (1409, 14133), (2019, 9863), (4227, 4711)]