20942121

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1\times {\mathrm{827}}^1$

素因数の和:1220

約数の個数: 16

約数和(自身を含む): 29251584

約数和(自身を除く): 8309463

約数列:

[1, 3, 23, 69, 367, 827, 1101, 2481, 8441, 19021, 25323, 57063, 303509, 910527, 6980707, 20942121]

約数ペア:

[(1, 20942121), (3, 6980707), (23, 910527), (69, 303509), (367, 57063), (827, 25323), (1101, 19021), (2481, 8441)]