19001381

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1103}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 22892544

約数和(自身を除く): 3891163

約数列:

[1, 7, 23, 107, 161, 749, 1103, 2461, 7721, 17227, 25369, 118021, 177583, 826147, 2714483, 19001381]

約数ペア:

[(1, 19001381), (7, 2714483), (23, 826147), (107, 177583), (161, 118021), (749, 25369), (1103, 17227), (2461, 7721)]