16781121

素因数分解:

$3^3\times 7^1\times {\mathrm{88789}}^1$

素因数の和:88805

約数の個数: 16

約数和(自身を含む): 28412800

約数和(自身を除く): 11631679

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 88789, 266367, 621523, 799101, 1864569, 2397303, 5593707, 16781121]

約数ペア:

[(1, 16781121), (3, 5593707), (7, 2397303), (9, 1864569), (21, 799101), (27, 621523), (63, 266367), (189, 88789)]