520429

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:89

約数の個数: 24

約数和(自身を含む): 702240

約数和(自身を除く): 181811

約数列:

[1, 7, 13, 19, 43, 49, 91, 133, 247, 301, 559, 637, 817, 931, 1729, 2107, 3913, 5719, 10621, 12103, 27391, 40033, 74347, 520429]

約数ペア:

[(1, 520429), (7, 74347), (13, 40033), (19, 27391), (43, 12103), (49, 10621), (91, 5719), (133, 3913), (247, 2107), (301, 1729), (559, 931), (637, 817)]