19321497

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:395

約数の個数: 40

約数和(自身を含む): 31711680

約数和(自身を除く): 12390183

約数列:

[1, 3, 9, 13, 27, 39, 59, 81, 117, 177, 311, 351, 531, 767, 933, 1053, 1593, 2301, 2799, 4043, 4779, 6903, 8397, 12129, 18349, 20709, 25191, 36387, 55047, 62127, 109161, 165141, 238537, 327483, 495423, 715611, 1486269, 2146833, 6440499, 19321497]

約数ペア:

[(1, 19321497), (3, 6440499), (9, 2146833), (13, 1486269), (27, 715611), (39, 495423), (59, 327483), (81, 238537), (117, 165141), (177, 109161), (311, 62127), (351, 55047), (531, 36387), (767, 25191), (933, 20709), (1053, 18349), (1593, 12129), (2301, 8397), (2799, 6903), (4043, 4779)]