21540496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79193}}^1$

素因数の和:79218

約数の個数: 20

約数和(自身を含む): 44190252

約数和(自身を除く): 22649756

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79193, 158386, 316772, 633544, 1267088, 1346281, 2692562, 5385124, 10770248, 21540496]

約数ペア:

[(1, 21540496), (2, 10770248), (4, 5385124), (8, 2692562), (16, 1346281), (17, 1267088), (34, 633544), (68, 316772), (136, 158386), (272, 79193)]