20690288

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9439}}^1$

素因数の和:9584

約数の個数: 20

約数和(自身を含む): 40384320

約数和(自身を除く): 19694032

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9439, 18878, 37756, 75512, 151024, 1293143, 2586286, 5172572, 10345144, 20690288]

約数ペア:

[(1, 20690288), (2, 10345144), (4, 5172572), (8, 2586286), (16, 1293143), (137, 151024), (274, 75512), (548, 37756), (1096, 18878), (2192, 9439)]