19870884

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 108

約数和(自身を含む): 58247280

約数和(自身を除く): 38376396

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 57, 66, 76, 99, 114, 132, 139, 171, 198, 209, 228, 278, 342, 361, 396, 417, 418, 556, 627, 684, 722, 834, 836, 1083, 1251, 1254, 1444, 1529, 1668, 1881, 2166, 2502, 2508, 2641, 3058, 3249, 3762, 3971, 4332, 4587, 5004, 5282, 6116, 6498, 7524, 7923, 7942, 9174, 10564, 11913, 12996, 13761, 15846, 15884, 18348, 23769, 23826, 27522, 29051, 31692, 35739, 47538, 47652, 50179, 55044, 58102, 71478, 87153, 95076, 100358, 116204, 142956, 150537, 174306, 200716, 261459, 301074, 348612, 451611, 522918, 551969, 602148, 903222, 1045836, 1103938, 1655907, 1806444, 2207876, 3311814, 4967721, 6623628, 9935442, 19870884]

約数ペア:

[(1, 19870884), (2, 9935442), (3, 6623628), (4, 4967721), (6, 3311814), (9, 2207876), (11, 1806444), (12, 1655907), (18, 1103938), (19, 1045836), (22, 903222), (33, 602148), (36, 551969), (38, 522918), (44, 451611), (57, 348612), (66, 301074), (76, 261459), (99, 200716), (114, 174306), (132, 150537), (139, 142956), (171, 116204), (198, 100358), (209, 95076), (228, 87153), (278, 71478), (342, 58102), (361, 55044), (396, 50179), (417, 47652), (418, 47538), (556, 35739), (627, 31692), (684, 29051), (722, 27522), (834, 23826), (836, 23769), (1083, 18348), (1251, 15884), (1254, 15846), (1444, 13761), (1529, 12996), (1668, 11913), (1881, 10564), (2166, 9174), (2502, 7942), (2508, 7923), (2641, 7524), (3058, 6498), (3249, 6116), (3762, 5282), (3971, 5004), (4332, 4587)]