201820209

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{313}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 292999680

約数和(自身を除く): 91179471

約数列:

[1, 3, 17, 47, 51, 141, 269, 313, 799, 807, 939, 2397, 4573, 5321, 12643, 13719, 14711, 15963, 37929, 44133, 84197, 214931, 250087, 252591, 644793, 750261, 1431349, 3957259, 4294047, 11871777, 67273403, 201820209]

約数ペア:

[(1, 201820209), (3, 67273403), (17, 11871777), (47, 4294047), (51, 3957259), (141, 1431349), (269, 750261), (313, 644793), (799, 252591), (807, 250087), (939, 214931), (2397, 84197), (4573, 44133), (5321, 37929), (12643, 15963), (13719, 14711)]