20386898

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{18433}}^1$

素因数の和:18521

約数の個数: 16

約数和(自身を含む): 35393280

約数和(自身を除く): 15006382

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 18433, 36866, 129031, 258062, 1456207, 2912414, 10193449, 20386898]

約数ペア:

[(1, 20386898), (2, 10193449), (7, 2912414), (14, 1456207), (79, 258062), (158, 129031), (553, 36866), (1106, 18433)]