20647604

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{1033}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 38216640

約数和(自身を除く): 17569036

約数列:

[1, 2, 4, 19, 38, 76, 263, 526, 1033, 1052, 2066, 4132, 4997, 9994, 19627, 19988, 39254, 78508, 271679, 543358, 1086716, 5161901, 10323802, 20647604]

約数ペア:

[(1, 20647604), (2, 10323802), (4, 5161901), (19, 1086716), (38, 543358), (76, 271679), (263, 78508), (526, 39254), (1033, 19988), (1052, 19627), (2066, 9994), (4132, 4997)]