20815806

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2269}}^1$

素因数の和:2424

約数の個数: 32

約数和(自身を含む): 45763200

約数和(自身を除く): 24947394

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 139, 278, 417, 834, 1529, 2269, 3058, 4538, 4587, 6807, 9174, 13614, 24959, 49918, 74877, 149754, 315391, 630782, 946173, 1892346, 3469301, 6938602, 10407903, 20815806]

約数ペア:

[(1, 20815806), (2, 10407903), (3, 6938602), (6, 3469301), (11, 1892346), (22, 946173), (33, 630782), (66, 315391), (139, 149754), (278, 74877), (417, 49918), (834, 24959), (1529, 13614), (2269, 9174), (3058, 6807), (4538, 4587)]