19865146

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 19947974

約数列:

[1, 2, 7, 14, 17, 19, 23, 34, 38, 46, 119, 133, 161, 191, 238, 266, 322, 323, 382, 391, 437, 646, 782, 874, 1337, 2261, 2674, 2737, 3059, 3247, 3629, 4393, 4522, 5474, 6118, 6494, 7258, 7429, 8786, 14858, 22729, 25403, 30751, 45458, 50806, 52003, 61502, 61693, 74681, 83467, 104006, 123386, 149362, 166934, 431851, 522767, 584269, 863702, 1045534, 1168538, 1418939, 2837878, 9932573, 19865146]

約数ペア:

[(1, 19865146), (2, 9932573), (7, 2837878), (14, 1418939), (17, 1168538), (19, 1045534), (23, 863702), (34, 584269), (38, 522767), (46, 431851), (119, 166934), (133, 149362), (161, 123386), (191, 104006), (238, 83467), (266, 74681), (322, 61693), (323, 61502), (382, 52003), (391, 50806), (437, 45458), (646, 30751), (782, 25403), (874, 22729), (1337, 14858), (2261, 8786), (2674, 7429), (2737, 7258), (3059, 6494), (3247, 6118), (3629, 5474), (4393, 4522)]