15899121

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5869}}^1$

素因数の和:5925

約数の個数: 24

約数和(自身を含む): 26861120

約数和(自身を除く): 10961999

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 5869, 17607, 41083, 52821, 123249, 252367, 369747, 757101, 1766569, 2271303, 5299707, 15899121]

約数ペア:

[(1, 15899121), (3, 5299707), (7, 2271303), (9, 1766569), (21, 757101), (43, 369747), (63, 252367), (129, 123249), (301, 52821), (387, 41083), (903, 17607), (2709, 5869)]