18121978

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{27541}}^1$

素因数の和:27597

約数の個数: 16

約数和(自身を含む): 31728384

約数和(自身を除く): 13606406

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 27541, 55082, 192787, 385574, 1294427, 2588854, 9060989, 18121978]

約数ペア:

[(1, 18121978), (2, 9060989), (7, 2588854), (14, 1294427), (47, 385574), (94, 192787), (329, 55082), (658, 27541)]