21878032

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{631}}^1$

素因数の和:847

約数の個数: 40

約数和(自身を含む): 46550592

約数和(自身を除く): 24672560

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 197, 394, 631, 788, 1262, 1576, 2167, 2524, 3152, 4334, 5048, 6941, 8668, 10096, 13882, 17336, 27764, 34672, 55528, 111056, 124307, 248614, 497228, 994456, 1367377, 1988912, 2734754, 5469508, 10939016, 21878032]

約数ペア:

[(1, 21878032), (2, 10939016), (4, 5469508), (8, 2734754), (11, 1988912), (16, 1367377), (22, 994456), (44, 497228), (88, 248614), (176, 124307), (197, 111056), (394, 55528), (631, 34672), (788, 27764), (1262, 17336), (1576, 13882), (2167, 10096), (2524, 8668), (3152, 6941), (4334, 5048)]