19911270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{663709}}^1$

素因数の和:663719

約数の個数: 16

約数和(自身を含む): 47787120

約数和(自身を除く): 27875850

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 663709, 1327418, 1991127, 3318545, 3982254, 6637090, 9955635, 19911270]

約数ペア:

[(1, 19911270), (2, 9955635), (3, 6637090), (5, 3982254), (6, 3318545), (10, 1991127), (15, 1327418), (30, 663709)]