21809404

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{41621}}^1$

素因数の和:41756

約数の個数: 12

約数和(自身を含む): 38458728

約数和(自身を除く): 16649324

約数列:

[1, 2, 4, 131, 262, 524, 41621, 83242, 166484, 5452351, 10904702, 21809404]

約数ペア:

[(1, 21809404), (2, 10904702), (4, 5452351), (131, 166484), (262, 83242), (524, 41621)]