19806703

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2861}}^1$

素因数の和:2934

約数の個数: 16

約数和(自身を含む): 24178176

約数和(自身を除く): 4371473

約数列:

[1, 7, 23, 43, 161, 301, 989, 2861, 6923, 20027, 65803, 123023, 460621, 861161, 2829529, 19806703]

約数ペア:

[(1, 19806703), (7, 2829529), (23, 861161), (43, 460621), (161, 123023), (301, 65803), (989, 20027), (2861, 6923)]