20807858678

素因数分解:

$2^1\times {\mathrm{311}}^1\times {\mathrm{641}}^1\times {\mathrm{52189}}^1$

素因数の和:53143

約数の個数: 16

約数和(自身を含む): 31361597280

約数和(自身を除く): 10553738602

約数列:

[1, 2, 311, 622, 641, 1282, 52189, 104378, 199351, 398702, 16230779, 32461558, 33453149, 66906298, 10403929339, 20807858678]

約数ペア:

[(1, 20807858678), (2, 10403929339), (311, 66906298), (622, 33453149), (641, 32461558), (1282, 16230779), (52189, 398702), (104378, 199351)]