20496651

素因数分解:

$3^1\times 7^3\times {\mathrm{19919}}^1$

素因数の和:19943

約数の個数: 16

約数和(自身を含む): 31872000

約数和(自身を除く): 11375349

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 19919, 59757, 139433, 418299, 976031, 2928093, 6832217, 20496651]

約数ペア:

[(1, 20496651), (3, 6832217), (7, 2928093), (21, 976031), (49, 418299), (147, 139433), (343, 59757), (1029, 19919)]