19993204

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 24036236

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 139, 154, 278, 308, 467, 556, 934, 973, 1529, 1868, 1946, 3058, 3269, 3892, 5137, 6116, 6538, 10274, 10703, 13076, 20548, 21406, 35959, 42812, 64913, 71918, 129826, 143836, 259652, 454391, 714043, 908782, 1428086, 1817564, 2856172, 4998301, 9996602, 19993204]

約数ペア:

[(1, 19993204), (2, 9996602), (4, 4998301), (7, 2856172), (11, 1817564), (14, 1428086), (22, 908782), (28, 714043), (44, 454391), (77, 259652), (139, 143836), (154, 129826), (278, 71918), (308, 64913), (467, 42812), (556, 35959), (934, 21406), (973, 20548), (1529, 13076), (1868, 10703), (1946, 10274), (3058, 6538), (3269, 6116), (3892, 5137)]