20921359016

素因数分解:

$2^3\times {\mathrm{676979}}^1\times {\mathrm{3863}}^1$

素因数の和:680848

約数の個数: 16

約数和(自身を含む): 39237760800

約数和(自身を除く): 18316401784

約数列:

[1, 2, 4, 8, 3863, 7726, 15452, 30904, 676979, 1353958, 2707916, 5415832, 2615169877, 5230339754, 10460679508, 20921359016]

約数ペア:

[(1, 20921359016), (2, 10460679508), (4, 5230339754), (8, 2615169877), (3863, 5415832), (7726, 2707916), (15452, 1353958), (30904, 676979)]