19072989

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 31305120

約数和(自身を除く): 12232131

約数列:

[1, 3, 9, 13, 27, 39, 59, 81, 117, 177, 307, 351, 531, 767, 921, 1053, 1593, 2301, 2763, 3991, 4779, 6903, 8289, 11973, 18113, 20709, 24867, 35919, 54339, 62127, 107757, 163017, 235469, 323271, 489051, 706407, 1467153, 2119221, 6357663, 19072989]

約数ペア:

[(1, 19072989), (3, 6357663), (9, 2119221), (13, 1467153), (27, 706407), (39, 489051), (59, 323271), (81, 235469), (117, 163017), (177, 107757), (307, 62127), (351, 54339), (531, 35919), (767, 24867), (921, 20709), (1053, 18113), (1593, 11973), (2301, 8289), (2763, 6903), (3991, 4779)]