21768621

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{24107}}^1$

素因数の和:24160

約数の個数: 16

約数和(自身を含む): 33944064

約数和(自身を除く): 12175443

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 24107, 72321, 168749, 506247, 1036601, 3109803, 7256207, 21768621]

約数ペア:

[(1, 21768621), (3, 7256207), (7, 3109803), (21, 1036601), (43, 506247), (129, 168749), (301, 72321), (903, 24107)]