19688344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{189311}}^1$

素因数の和:189330

約数の個数: 16

約数和(自身を含む): 39755520

約数和(自身を除く): 20067176

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 189311, 378622, 757244, 1514488, 2461043, 4922086, 9844172, 19688344]

約数ペア:

[(1, 19688344), (2, 9844172), (4, 4922086), (8, 2461043), (13, 1514488), (26, 757244), (52, 378622), (104, 189311)]