28125321

素因数分解:

$3^1\times 7^1\times {\mathrm{709}}^1\times {\mathrm{1889}}^1$

素因数の和:2608

約数の個数: 16

約数和(自身を含む): 42940800

約数和(自身を除く): 14815479

約数列:

[1, 3, 7, 21, 709, 1889, 2127, 4963, 5667, 13223, 14889, 39669, 1339301, 4017903, 9375107, 28125321]

約数ペア:

[(1, 28125321), (3, 9375107), (7, 4017903), (21, 1339301), (709, 39669), (1889, 14889), (2127, 13223), (4963, 5667)]