19397441

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{571}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 23282688

約数和(自身を除く): 3885247

約数列:

[1, 7, 23, 161, 211, 571, 1477, 3997, 4853, 13133, 33971, 91931, 120481, 843367, 2771063, 19397441]

約数ペア:

[(1, 19397441), (7, 2771063), (23, 843367), (161, 120481), (211, 91931), (571, 33971), (1477, 13133), (3997, 4853)]