20729884

素因数分解:

$2^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4903}}^1$

素因数の和:5065

約数の個数: 24

約数和(自身を含む): 41742848

約数和(自身を除く): 21012964

約数列:

[1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228, 4903, 9806, 19612, 34321, 68642, 137284, 740353, 1480706, 2961412, 5182471, 10364942, 20729884]

約数ペア:

[(1, 20729884), (2, 10364942), (4, 5182471), (7, 2961412), (14, 1480706), (28, 740353), (151, 137284), (302, 68642), (604, 34321), (1057, 19612), (2114, 9806), (4228, 4903)]