20864368

素因数分解:

$2^4\times 7^1\times {\mathrm{311}}^1\times {\mathrm{599}}^1$

素因数の和:925

約数の個数: 40

約数和(自身を含む): 46425600

約数和(自身を除く): 25561232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 311, 599, 622, 1198, 1244, 2177, 2396, 2488, 4193, 4354, 4792, 4976, 8386, 8708, 9584, 16772, 17416, 33544, 34832, 67088, 186289, 372578, 745156, 1304023, 1490312, 2608046, 2980624, 5216092, 10432184, 20864368]

約数ペア:

[(1, 20864368), (2, 10432184), (4, 5216092), (7, 2980624), (8, 2608046), (14, 1490312), (16, 1304023), (28, 745156), (56, 372578), (112, 186289), (311, 67088), (599, 34832), (622, 33544), (1198, 17416), (1244, 16772), (2177, 9584), (2396, 8708), (2488, 8386), (4193, 4976), (4354, 4792)]