19125765

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1087}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 36661248

約数和(自身を除く): 17535483

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 115, 153, 207, 255, 345, 391, 765, 1035, 1087, 1173, 1955, 3261, 3519, 5435, 5865, 9783, 16305, 17595, 18479, 25001, 48915, 55437, 75003, 92395, 125005, 166311, 225009, 277185, 375015, 425017, 831555, 1125045, 1275051, 2125085, 3825153, 6375255, 19125765]

約数ペア:

[(1, 19125765), (3, 6375255), (5, 3825153), (9, 2125085), (15, 1275051), (17, 1125045), (23, 831555), (45, 425017), (51, 375015), (69, 277185), (85, 225009), (115, 166311), (153, 125005), (207, 92395), (255, 75003), (345, 55437), (391, 48915), (765, 25001), (1035, 18479), (1087, 17595), (1173, 16305), (1955, 9783), (3261, 5865), (3519, 5435)]