18723339

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9767}}^1$

素因数の和:9847

約数の個数: 16

約数和(自身を含む): 28131840

約数和(自身を除く): 9408501

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9767, 29301, 87903, 263709, 693457, 2080371, 6241113, 18723339]

約数ペア:

[(1, 18723339), (3, 6241113), (9, 2080371), (27, 693457), (71, 263709), (213, 87903), (639, 29301), (1917, 9767)]