18897207

素因数分解:

$3^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{1789}}^1$

素因数の和:2302

約数の個数: 16

約数和(自身を含む): 28869120

約数和(自身を除く): 9971913

約数列:

[1, 3, 7, 21, 503, 1509, 1789, 3521, 5367, 10563, 12523, 37569, 899867, 2699601, 6299069, 18897207]

約数ペア:

[(1, 18897207), (3, 6299069), (7, 2699601), (21, 899867), (503, 37569), (1509, 12523), (1789, 10563), (3521, 5367)]