18759781887

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81211177}}^1$

素因数の和:81211198

約数の個数: 16

約数和(自身を含む): 31185092352

約数和(自身を除く): 12425310465

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81211177, 243633531, 568478239, 893322947, 1705434717, 2679968841, 6253260629, 18759781887]

約数ペア:

[(1, 18759781887), (3, 6253260629), (7, 2679968841), (11, 1705434717), (21, 893322947), (33, 568478239), (77, 243633531), (231, 81211177)]