19963015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 7408505

約数列:

[1, 5, 17, 19, 47, 85, 95, 235, 263, 323, 799, 893, 1315, 1615, 3995, 4465, 4471, 4997, 12361, 15181, 22355, 24985, 61805, 75905, 84949, 210137, 234859, 424745, 1050685, 1174295, 3992603, 19963015]

約数ペア:

[(1, 19963015), (5, 3992603), (17, 1174295), (19, 1050685), (47, 424745), (85, 234859), (95, 210137), (235, 84949), (263, 75905), (323, 61805), (799, 24985), (893, 22355), (1315, 15181), (1615, 12361), (3995, 4997), (4465, 4471)]