20123893454

素因数分解:

$2^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{7447777}}^1$

素因数の和:7447979

約数の個数: 16

約数和(自身を含む): 34676854368

約数和(自身を除く): 14552960914

約数列:

[1, 2, 7, 14, 193, 386, 1351, 2702, 7447777, 14895554, 52134439, 104268878, 1437420961, 2874841922, 10061946727, 20123893454]

約数ペア:

[(1, 20123893454), (2, 10061946727), (7, 2874841922), (14, 1437420961), (193, 104268878), (386, 52134439), (1351, 14895554), (2702, 7447777)]