19974143

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1279}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 24084480

約数和(自身を除く): 4110337

約数列:

[1, 7, 23, 97, 161, 679, 1279, 2231, 8953, 15617, 29417, 124063, 205919, 868441, 2853449, 19974143]

約数ペア:

[(1, 19974143), (7, 2853449), (23, 868441), (97, 205919), (161, 124063), (679, 29417), (1279, 15617), (2231, 8953)]