21340564

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20599}}^1$

素因数の和:20647

約数の個数: 24

約数和(自身を含む): 43836800

約数和(自身を除く): 22496236

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20599, 41198, 82396, 144193, 288386, 576772, 762163, 1524326, 3048652, 5335141, 10670282, 21340564]

約数ペア:

[(1, 21340564), (2, 10670282), (4, 5335141), (7, 3048652), (14, 1524326), (28, 762163), (37, 576772), (74, 288386), (148, 144193), (259, 82396), (518, 41198), (1036, 20599)]