12948985

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3109}}^1$

素因数の和:3145

約数の個数: 24

約数和(自身を含む): 19145160

約数和(自身を除く): 6196175

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 3109, 4165, 15545, 21763, 52853, 108815, 152341, 264265, 369971, 761705, 1849855, 2589797, 12948985]

約数ペア:

[(1, 12948985), (5, 2589797), (7, 1849855), (17, 761705), (35, 369971), (49, 264265), (85, 152341), (119, 108815), (245, 52853), (595, 21763), (833, 15545), (3109, 4165)]