20864073

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1064

約数の個数: 16

約数和(自身を含む): 28645056

約数和(自身を除く): 7780983

約数列:

[1, 3, 43, 129, 197, 591, 821, 2463, 8471, 25413, 35303, 105909, 161737, 485211, 6954691, 20864073]

約数ペア:

[(1, 20864073), (3, 6954691), (43, 485211), (129, 161737), (197, 105909), (591, 35303), (821, 25413), (2463, 8471)]