20158185

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31253}}^1$

素因数の和:31304

約数の個数: 16

約数和(自身を含む): 33004224

約数和(自身を除く): 12846039

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31253, 93759, 156265, 468795, 1343879, 4031637, 6719395, 20158185]

約数ペア:

[(1, 20158185), (3, 6719395), (5, 4031637), (15, 1343879), (43, 468795), (129, 156265), (215, 93759), (645, 31253)]