18280917

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{21841}}^1$

素因数の和:21881

約数の個数: 16

約数和(自身を含む): 27957760

約数和(自身を除く): 9676843

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 21841, 65523, 196569, 589707, 677071, 2031213, 6093639, 18280917]

約数ペア:

[(1, 18280917), (3, 6093639), (9, 2031213), (27, 677071), (31, 589707), (93, 196569), (279, 65523), (837, 21841)]