51721439

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{35353}}^1$

素因数の和:35390

約数の個数: 16

約数和(自身を含む): 67879680

約数和(自身を除く): 16158241

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 35353, 247471, 388883, 671707, 2722181, 4701949, 7388777, 51721439]

約数ペア:

[(1, 51721439), (7, 7388777), (11, 4701949), (19, 2722181), (77, 671707), (133, 388883), (209, 247471), (1463, 35353)]