20137852

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8081}}^1$

素因数の和:8181

約数の個数: 24

約数和(自身を含む): 40733280

約数和(自身を除く): 20595428

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 8081, 16162, 32324, 56567, 113134, 226268, 719209, 1438418, 2876836, 5034463, 10068926, 20137852]

約数ペア:

[(1, 20137852), (2, 10068926), (4, 5034463), (7, 2876836), (14, 1438418), (28, 719209), (89, 226268), (178, 113134), (356, 56567), (623, 32324), (1246, 16162), (2492, 8081)]