19872023

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:694

約数の個数: 16

約数和(自身を含む): 21897216

約数和(自身を除く): 2025193

約数列:

[1, 23, 31, 47, 593, 713, 1081, 1457, 13639, 18383, 27871, 33511, 422809, 641033, 864001, 19872023]

約数ペア:

[(1, 19872023), (23, 864001), (31, 641033), (47, 422809), (593, 33511), (713, 27871), (1081, 18383), (1457, 13639)]