28505757

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71443}}^1$

素因数の和:71472

約数の個数: 16

約数和(自身を含む): 45724160

約数和(自身を除く): 17218403

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71443, 214329, 500101, 1357417, 1500303, 4072251, 9501919, 28505757]

約数ペア:

[(1, 28505757), (3, 9501919), (7, 4072251), (19, 1500303), (21, 1357417), (57, 500101), (133, 214329), (399, 71443)]