28328013

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{10457}}^1$

素因数の和:10513

約数の個数: 24

約数和(自身を含む): 47855808

約数和(自身を除く): 19527795

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 10457, 31371, 73199, 94113, 219597, 449651, 658791, 1348953, 3147557, 4046859, 9442671, 28328013]

約数ペア:

[(1, 28328013), (3, 9442671), (7, 4046859), (9, 3147557), (21, 1348953), (43, 658791), (63, 449651), (129, 219597), (301, 94113), (387, 73199), (903, 31371), (2709, 10457)]