520079409

素因数分解:

$3^2\times {\mathrm{197}}^2\times {\mathrm{1489}}^1$

素因数の和:1889

約数の個数: 18

約数和(自身を含む): 755565590

約数和(自身を除く): 235486181

約数列:

[1, 3, 9, 197, 591, 1489, 1773, 4467, 13401, 38809, 116427, 293333, 349281, 879999, 2639997, 57786601, 173359803, 520079409]

約数ペア:

[(1, 520079409), (3, 173359803), (9, 57786601), (197, 2639997), (591, 879999), (1489, 349281), (1773, 293333), (4467, 116427), (13401, 38809)]