20980778

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{115279}}^1$

素因数の和:115301

約数の個数: 16

約数和(自身を含む): 38734080

約数和(自身を除く): 17753302

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 115279, 230558, 806953, 1498627, 1613906, 2997254, 10490389, 20980778]

約数ペア:

[(1, 20980778), (2, 10490389), (7, 2997254), (13, 1613906), (14, 1498627), (26, 806953), (91, 230558), (182, 115279)]