19187288

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 39308280

約数和(自身を除く): 20120992

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 193, 289, 344, 386, 578, 731, 772, 1156, 1462, 1544, 2312, 2924, 3281, 5848, 6562, 8299, 12427, 13124, 16598, 24854, 26248, 33196, 49708, 55777, 66392, 99416, 111554, 141083, 223108, 282166, 446216, 564332, 1128664, 2398411, 4796822, 9593644, 19187288]

約数ペア:

[(1, 19187288), (2, 9593644), (4, 4796822), (8, 2398411), (17, 1128664), (34, 564332), (43, 446216), (68, 282166), (86, 223108), (136, 141083), (172, 111554), (193, 99416), (289, 66392), (344, 55777), (386, 49708), (578, 33196), (731, 26248), (772, 24854), (1156, 16598), (1462, 13124), (1544, 12427), (2312, 8299), (2924, 6562), (3281, 5848)]