2189991

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1867}}^1$

素因数の和:1910

約数の個数: 16

約数和(自身を含む): 3227904

約数和(自身を除く): 1037913

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 1867, 5601, 31739, 42941, 95217, 128823, 729997, 2189991]

約数ペア:

[(1, 2189991), (3, 729997), (17, 128823), (23, 95217), (51, 42941), (69, 31739), (391, 5601), (1173, 1867)]