19877842

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{2239}}^1$

素因数の和:2457

約数の個数: 16

約数和(自身を含む): 31288320

約数和(自身を除く): 11410478

約数列:

[1, 2, 23, 46, 193, 386, 2239, 4439, 4478, 8878, 51497, 102994, 432127, 864254, 9938921, 19877842]

約数ペア:

[(1, 19877842), (2, 9938921), (23, 864254), (46, 432127), (193, 102994), (386, 51497), (2239, 8878), (4439, 4478)]