20681006

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{4993}}^1$

素因数の和:5123

約数の個数: 16

約数和(自身を含む): 32960400

約数和(自身を除く): 12279394

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 4993, 9986, 94867, 189734, 544237, 1088474, 10340503, 20681006]

約数ペア:

[(1, 20681006), (2, 10340503), (19, 1088474), (38, 544237), (109, 189734), (218, 94867), (2071, 9986), (4142, 4993)]