20549404

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{165721}}^1$

素因数の和:165756

約数の個数: 12

約数和(自身を含む): 37121728

約数和(自身を除く): 16572324

約数列:

[1, 2, 4, 31, 62, 124, 165721, 331442, 662884, 5137351, 10274702, 20549404]

約数ペア:

[(1, 20549404), (2, 10274702), (4, 5137351), (31, 662884), (62, 331442), (124, 165721)]