18920973

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{619}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 26426880

約数和(自身を除く): 7505907

約数列:

[1, 3, 23, 69, 443, 619, 1329, 1857, 10189, 14237, 30567, 42711, 274217, 822651, 6306991, 18920973]

約数ペア:

[(1, 18920973), (3, 6306991), (23, 822651), (69, 274217), (443, 42711), (619, 30567), (1329, 14237), (1857, 10189)]