19904415

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{25037}}^1$

素因数の和:25098

約数の個数: 16

約数和(自身を含む): 32449248

約数和(自身を除く): 12544833

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 25037, 75111, 125185, 375555, 1326961, 3980883, 6634805, 19904415]

約数ペア:

[(1, 19904415), (3, 6634805), (5, 3980883), (15, 1326961), (53, 375555), (159, 125185), (265, 75111), (795, 25037)]