19878312994

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{3108901}}^1$

素因数の和:3109065

約数の個数: 16

約数和(自身を含む): 31337732160

約数和(自身を除く): 11459419166

約数列:

[1, 2, 23, 46, 139, 278, 3197, 6394, 3108901, 6217802, 71504723, 143009446, 432137239, 864274478, 9939156497, 19878312994]

約数ペア:

[(1, 19878312994), (2, 9939156497), (23, 864274478), (46, 432137239), (139, 143009446), (278, 71504723), (3197, 6217802), (6394, 3108901)]