20896865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19997}}^1$

素因数の和:20032

約数の個数: 16

約数和(自身を含む): 28797120

約数和(自身を除く): 7900255

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19997, 99985, 219967, 379943, 1099835, 1899715, 4179373, 20896865]

約数ペア:

[(1, 20896865), (5, 4179373), (11, 1899715), (19, 1099835), (55, 379943), (95, 219967), (209, 99985), (1045, 19997)]