81029974

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{20047}}^1$

素因数の和:20139

約数の個数: 16

約数和(自身を含む): 127024128

約数和(自身を除く): 45994154

約数列:

[1, 2, 43, 47, 86, 94, 2021, 4042, 20047, 40094, 862021, 942209, 1724042, 1884418, 40514987, 81029974]

約数ペア:

[(1, 81029974), (2, 40514987), (43, 1884418), (47, 1724042), (86, 942209), (94, 862021), (2021, 40094), (4042, 20047)]