20279828

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2441}}^1$

素因数の和:2543

約数の個数: 24

約数和(自身を含む): 37196544

約数和(自身を除く): 16916716

約数列:

[1, 2, 4, 31, 62, 67, 124, 134, 268, 2077, 2441, 4154, 4882, 8308, 9764, 75671, 151342, 163547, 302684, 327094, 654188, 5069957, 10139914, 20279828]

約数ペア:

[(1, 20279828), (2, 10139914), (4, 5069957), (31, 654188), (62, 327094), (67, 302684), (124, 163547), (134, 151342), (268, 75671), (2077, 9764), (2441, 8308), (4154, 4882)]