28487767

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3109}}^1$

素因数の和:3151

約数の個数: 24

約数和(自身を含む): 38290320

約数和(自身を除く): 9802553

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 3109, 9163, 21763, 34199, 52853, 152341, 239393, 369971, 581383, 1675751, 2589797, 4069681, 28487767]

約数ペア:

[(1, 28487767), (7, 4069681), (11, 2589797), (17, 1675751), (49, 581383), (77, 369971), (119, 239393), (187, 152341), (539, 52853), (833, 34199), (1309, 21763), (3109, 9163)]