21000404877

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{709}}^1\times {\mathrm{240811}}^1$

素因数の和:241564

約数の個数: 16

約数和(自身を含む): 28724055360

約数和(自身を除く): 7723650483

約数列:

[1, 3, 41, 123, 709, 2127, 29069, 87207, 240811, 722433, 9873251, 29619753, 170734999, 512204997, 7000134959, 21000404877]

約数ペア:

[(1, 21000404877), (3, 7000134959), (41, 512204997), (123, 170734999), (709, 29619753), (2127, 9873251), (29069, 722433), (87207, 240811)]