18738867

素因数分解:

$3^1\times 7^1\times {\mathrm{809}}^1\times {\mathrm{1103}}^1$

素因数の和:1922

約数の個数: 16

約数和(自身を含む): 28615680

約数和(自身を除く): 9876813

約数列:

[1, 3, 7, 21, 809, 1103, 2427, 3309, 5663, 7721, 16989, 23163, 892327, 2676981, 6246289, 18738867]

約数ペア:

[(1, 18738867), (3, 6246289), (7, 2676981), (21, 892327), (809, 23163), (1103, 16989), (2427, 7721), (3309, 5663)]