19397816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 21659464

約数列:

[1, 2, 4, 8, 17, 31, 34, 43, 62, 68, 86, 107, 124, 136, 172, 214, 248, 344, 428, 527, 731, 856, 1054, 1333, 1462, 1819, 2108, 2666, 2924, 3317, 3638, 4216, 4601, 5332, 5848, 6634, 7276, 9202, 10664, 13268, 14552, 18404, 22661, 26536, 36808, 45322, 56389, 78217, 90644, 112778, 142631, 156434, 181288, 225556, 285262, 312868, 451112, 570524, 625736, 1141048, 2424727, 4849454, 9698908, 19397816]

約数ペア:

[(1, 19397816), (2, 9698908), (4, 4849454), (8, 2424727), (17, 1141048), (31, 625736), (34, 570524), (43, 451112), (62, 312868), (68, 285262), (86, 225556), (107, 181288), (124, 156434), (136, 142631), (172, 112778), (214, 90644), (248, 78217), (344, 56389), (428, 45322), (527, 36808), (731, 26536), (856, 22661), (1054, 18404), (1333, 14552), (1462, 13268), (1819, 10664), (2108, 9202), (2666, 7276), (2924, 6634), (3317, 5848), (3638, 5332), (4216, 4601)]