128768187387

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6949}}^1\times {\mathrm{20521}}^1$

素因数の和:27523

約数の個数: 32

約数和(自身を含む): 200820083200

約数和(自身を除く): 72051895813

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 6949, 20521, 20847, 48643, 61563, 143647, 145929, 298807, 430941, 882403, 896421, 2091649, 2647209, 6176821, 6274947, 18530463, 142600429, 427801287, 998203003, 2994609009, 6131818447, 18395455341, 42922729129, 128768187387]

約数ペア:

[(1, 128768187387), (3, 42922729129), (7, 18395455341), (21, 6131818447), (43, 2994609009), (129, 998203003), (301, 427801287), (903, 142600429), (6949, 18530463), (20521, 6274947), (20847, 6176821), (48643, 2647209), (61563, 2091649), (143647, 896421), (145929, 882403), (298807, 430941)]