18917912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181903}}^1$

素因数の和:181922

約数の個数: 16

約数和(自身を含む): 38199840

約数和(自身を除く): 19281928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181903, 363806, 727612, 1455224, 2364739, 4729478, 9458956, 18917912]

約数ペア:

[(1, 18917912), (2, 9458956), (4, 4729478), (8, 2364739), (13, 1455224), (26, 727612), (52, 363806), (104, 181903)]