20797647

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 33730560

約数和(自身を除く): 12932913

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 127, 169, 221, 247, 323, 381, 507, 663, 741, 969, 1651, 2159, 2413, 2873, 3211, 4199, 4953, 6477, 7239, 8619, 9633, 12597, 21463, 28067, 31369, 41021, 54587, 64389, 84201, 94107, 123063, 163761, 364871, 407797, 533273, 1094613, 1223391, 1599819, 6932549, 20797647]

約数ペア:

[(1, 20797647), (3, 6932549), (13, 1599819), (17, 1223391), (19, 1094613), (39, 533273), (51, 407797), (57, 364871), (127, 163761), (169, 123063), (221, 94107), (247, 84201), (323, 64389), (381, 54587), (507, 41021), (663, 31369), (741, 28067), (969, 21463), (1651, 12597), (2159, 9633), (2413, 8619), (2873, 7239), (3211, 6477), (4199, 4953)]