18076821

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{6571}}^1$

素因数の和:6712

約数の個数: 16

約数和(自身を含む): 27760128

約数和(自身を除く): 9683307

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 6571, 19713, 45997, 137991, 860801, 2582403, 6025607, 18076821]

約数ペア:

[(1, 18076821), (3, 6025607), (7, 2582403), (21, 860801), (131, 137991), (393, 45997), (917, 19713), (2751, 6571)]