18866847

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{977}}^1$

素因数の和:1178

約数の個数: 16

約数和(自身を含む): 25960032

約数和(自身を除く): 7093185

約数列:

[1, 3, 41, 123, 157, 471, 977, 2931, 6437, 19311, 40057, 120171, 153389, 460167, 6288949, 18866847]

約数ペア:

[(1, 18866847), (3, 6288949), (41, 460167), (123, 153389), (157, 120171), (471, 40057), (977, 19311), (2931, 6437)]