20847035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12227}}^1$

素因数の和:12274

約数の個数: 16

約数和(自身を含む): 28173312

約数和(自身を除く): 7326277

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 12227, 61135, 134497, 379037, 672485, 1895185, 4169407, 20847035]

約数ペア:

[(1, 20847035), (5, 4169407), (11, 1895185), (31, 672485), (55, 379037), (155, 134497), (341, 61135), (1705, 12227)]