228478929

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{639997}}^1$

素因数の和:640024

約数の個数: 16

約数和(自身を含む): 368638848

約数和(自身を除く): 140159919

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 639997, 1919991, 4479979, 10879949, 13439937, 32639847, 76159643, 228478929]

約数ペア:

[(1, 228478929), (3, 76159643), (7, 32639847), (17, 13439937), (21, 10879949), (51, 4479979), (119, 1919991), (357, 639997)]