21338968

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4591}}^1$

素因数の和:4687

約数の個数: 32

約数和(自身を含む): 46287360

約数和(自身を除く): 24948392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4591, 4648, 9182, 18364, 32137, 36728, 64274, 128548, 257096, 381053, 762106, 1524212, 2667371, 3048424, 5334742, 10669484, 21338968]

約数ペア:

[(1, 21338968), (2, 10669484), (4, 5334742), (7, 3048424), (8, 2667371), (14, 1524212), (28, 762106), (56, 381053), (83, 257096), (166, 128548), (332, 64274), (581, 36728), (664, 32137), (1162, 18364), (2324, 9182), (4591, 4648)]