1261437121

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{31991}}^1$

素因数の和:32172

約数の個数: 16

約数和(自身を含む): 1486476288

約数和(自身を除く): 225039167

約数列:

[1, 7, 43, 131, 301, 917, 5633, 31991, 39431, 223937, 1375613, 4190821, 9629291, 29335747, 180205303, 1261437121]

約数ペア:

[(1, 1261437121), (7, 180205303), (43, 29335747), (131, 9629291), (301, 4190821), (917, 1375613), (5633, 223937), (31991, 39431)]