20681899

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6761}}^1$

素因数の和:6810

約数の個数: 16

約数和(自身を含む): 25966080

約数和(自身を除く): 5284181

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6761, 47327, 128459, 155503, 899213, 1088521, 2954557, 20681899]

約数ペア:

[(1, 20681899), (7, 2954557), (19, 1088521), (23, 899213), (133, 155503), (161, 128459), (437, 47327), (3059, 6761)]