19776496

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4561}}^1$

素因数の和:4840

約数の個数: 20

約数和(自身を含む): 38466784

約数和(自身を除く): 18690288

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4561, 9122, 18244, 36488, 72976, 1236031, 2472062, 4944124, 9888248, 19776496]

約数ペア:

[(1, 19776496), (2, 9888248), (4, 4944124), (8, 2472062), (16, 1236031), (271, 72976), (542, 36488), (1084, 18244), (2168, 9122), (4336, 4561)]