6442740647

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{364223}}^1$

素因数の和:364275

約数の個数: 18

約数和(自身を含む): 7909852608

約数和(自身を除く): 1467111961

約数列:

[1, 7, 19, 49, 133, 361, 931, 2527, 17689, 364223, 2549561, 6920237, 17846927, 48441659, 131484503, 339091613, 920391521, 6442740647]

約数ペア:

[(1, 6442740647), (7, 920391521), (19, 339091613), (49, 131484503), (133, 48441659), (361, 17846927), (931, 6920237), (2527, 2549561), (17689, 364223)]