18856274

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{9533}}^1$

素因数の和:9601

約数の個数: 16

約数和(自身を含む): 30203712

約数和(自身を除く): 11347438

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 9533, 19066, 219259, 409919, 438518, 819838, 9428137, 18856274]

約数ペア:

[(1, 18856274), (2, 9428137), (23, 819838), (43, 438518), (46, 409919), (86, 219259), (989, 19066), (1978, 9533)]