20158791

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4261}}^1$

素因数の和:4366

約数の個数: 16

約数和(自身を含む): 28640640

約数和(自身を除く): 8481849

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4261, 4731, 12783, 80959, 242877, 353663, 1060989, 6719597, 20158791]

約数ペア:

[(1, 20158791), (3, 6719597), (19, 1060989), (57, 353663), (83, 242877), (249, 80959), (1577, 12783), (4261, 4731)]