18642339

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{18661}}^1$

素因数の和:18707

約数の個数: 16

約数和(自身を含む): 28366240

約数和(自身を除く): 9723901

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 18661, 55983, 167949, 503847, 690457, 2071371, 6214113, 18642339]

約数ペア:

[(1, 18642339), (3, 6214113), (9, 2071371), (27, 690457), (37, 503847), (111, 167949), (333, 55983), (999, 18661)]