19978042

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{49207}}^1$

素因数の和:49245

約数の個数: 16

約数和(自身を含む): 35429760

約数和(自身を除く): 15451718

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 49207, 98414, 344449, 688898, 1427003, 2854006, 9989021, 19978042]

約数ペア:

[(1, 19978042), (2, 9989021), (7, 2854006), (14, 1427003), (29, 688898), (58, 344449), (203, 98414), (406, 49207)]