19893167

素因数分解:

$7^2\times {\mathrm{181}}^1\times {\mathrm{2243}}^1$

素因数の和:2438

約数の個数: 12

約数和(自身を含む): 23279256

約数和(自身を除く): 3386089

約数列:

[1, 7, 49, 181, 1267, 2243, 8869, 15701, 109907, 405983, 2841881, 19893167]

約数ペア:

[(1, 19893167), (7, 2841881), (49, 405983), (181, 109907), (1267, 15701), (2243, 8869)]