218981476

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{30431}}^1$

素因数の和:30699

約数の個数: 24

約数和(自身を含む): 439681536

約数和(自身を除く): 220700060

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 1028, 1799, 3598, 7196, 30431, 60862, 121724, 213017, 426034, 852068, 7820767, 15641534, 31283068, 54745369, 109490738, 218981476]

約数ペア:

[(1, 218981476), (2, 109490738), (4, 54745369), (7, 31283068), (14, 15641534), (28, 7820767), (257, 852068), (514, 426034), (1028, 213017), (1799, 121724), (3598, 60862), (7196, 30431)]