21388304

素因数分解:

$2^4\times 7^2\times {\mathrm{27281}}^1$

素因数の和:27303

約数の個数: 30

約数和(自身を含む): 48207294

約数和(自身を除く): 26818990

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27281, 54562, 109124, 190967, 218248, 381934, 436496, 763868, 1336769, 1527736, 2673538, 3055472, 5347076, 10694152, 21388304]

約数ペア:

[(1, 21388304), (2, 10694152), (4, 5347076), (7, 3055472), (8, 2673538), (14, 1527736), (16, 1336769), (28, 763868), (49, 436496), (56, 381934), (98, 218248), (112, 190967), (196, 109124), (392, 54562), (784, 27281)]