19438497

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 33218640

約数和(自身を除く): 13780143

約数列:

[1, 3, 9, 13, 17, 29, 39, 51, 87, 117, 153, 221, 261, 337, 377, 493, 663, 1011, 1131, 1479, 1989, 3033, 3393, 4381, 4437, 5729, 6409, 9773, 13143, 17187, 19227, 29319, 39429, 51561, 57681, 74477, 87957, 127049, 166141, 223431, 381147, 498423, 670293, 1143441, 1495269, 2159833, 6479499, 19438497]

約数ペア:

[(1, 19438497), (3, 6479499), (9, 2159833), (13, 1495269), (17, 1143441), (29, 670293), (39, 498423), (51, 381147), (87, 223431), (117, 166141), (153, 127049), (221, 87957), (261, 74477), (337, 57681), (377, 51561), (493, 39429), (663, 29319), (1011, 19227), (1131, 17187), (1479, 13143), (1989, 9773), (3033, 6409), (3393, 5729), (4381, 4437)]