20515544

素因数分解:

$2^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3361}}^1$

素因数の和:3483

約数の個数: 32

約数和(自身を含む): 44378400

約数和(自身を除く): 23862856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 109, 218, 436, 763, 872, 1526, 3052, 3361, 6104, 6722, 13444, 23527, 26888, 47054, 94108, 188216, 366349, 732698, 1465396, 2564443, 2930792, 5128886, 10257772, 20515544]

約数ペア:

[(1, 20515544), (2, 10257772), (4, 5128886), (7, 2930792), (8, 2564443), (14, 1465396), (28, 732698), (56, 366349), (109, 188216), (218, 94108), (436, 47054), (763, 26888), (872, 23527), (1526, 13444), (3052, 6722), (3361, 6104)]