12987604

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 27095040

約数和(自身を除く): 14107436

約数列:

[1, 2, 4, 7, 14, 28, 47, 71, 94, 139, 142, 188, 278, 284, 329, 497, 556, 658, 973, 994, 1316, 1946, 1988, 3337, 3892, 6533, 6674, 9869, 13066, 13348, 19738, 23359, 26132, 39476, 45731, 46718, 69083, 91462, 93436, 138166, 182924, 276332, 463843, 927686, 1855372, 3246901, 6493802, 12987604]

約数ペア:

[(1, 12987604), (2, 6493802), (4, 3246901), (7, 1855372), (14, 927686), (28, 463843), (47, 276332), (71, 182924), (94, 138166), (139, 93436), (142, 91462), (188, 69083), (278, 46718), (284, 45731), (329, 39476), (497, 26132), (556, 23359), (658, 19738), (973, 13348), (994, 13066), (1316, 9869), (1946, 6674), (1988, 6533), (3337, 3892)]