28159439

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 8999473

約数列:

[1, 7, 11, 31, 47, 77, 217, 251, 329, 341, 517, 1457, 1757, 2387, 2761, 3619, 7781, 10199, 11797, 16027, 19327, 54467, 82579, 85591, 112189, 129767, 365707, 599137, 908369, 2559949, 4022777, 28159439]

約数ペア:

[(1, 28159439), (7, 4022777), (11, 2559949), (31, 908369), (47, 599137), (77, 365707), (217, 129767), (251, 112189), (329, 85591), (341, 82579), (517, 54467), (1457, 19327), (1757, 16027), (2387, 11797), (2761, 10199), (3619, 7781)]