19955628

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 65834496

約数和(自身を除く): 45878868

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 23, 28, 33, 36, 42, 44, 46, 63, 66, 69, 77, 84, 92, 99, 126, 132, 138, 154, 161, 198, 207, 231, 252, 253, 276, 308, 313, 322, 396, 414, 462, 483, 506, 626, 644, 693, 759, 828, 924, 939, 966, 1012, 1252, 1386, 1449, 1518, 1771, 1878, 1932, 2191, 2277, 2772, 2817, 2898, 3036, 3443, 3542, 3756, 4382, 4554, 5313, 5634, 5796, 6573, 6886, 7084, 7199, 8764, 9108, 10329, 10626, 11268, 13146, 13772, 14398, 15939, 19719, 20658, 21252, 21597, 24101, 26292, 28796, 30987, 31878, 39438, 41316, 43194, 48202, 50393, 61974, 63756, 64791, 72303, 78876, 79189, 86388, 96404, 100786, 123948, 129582, 144606, 151179, 158378, 201572, 216909, 237567, 259164, 289212, 302358, 316756, 433818, 453537, 475134, 554323, 604716, 712701, 867636, 907074, 950268, 1108646, 1425402, 1662969, 1814148, 2217292, 2850804, 3325938, 4988907, 6651876, 9977814, 19955628]

約数ペア:

[(1, 19955628), (2, 9977814), (3, 6651876), (4, 4988907), (6, 3325938), (7, 2850804), (9, 2217292), (11, 1814148), (12, 1662969), (14, 1425402), (18, 1108646), (21, 950268), (22, 907074), (23, 867636), (28, 712701), (33, 604716), (36, 554323), (42, 475134), (44, 453537), (46, 433818), (63, 316756), (66, 302358), (69, 289212), (77, 259164), (84, 237567), (92, 216909), (99, 201572), (126, 158378), (132, 151179), (138, 144606), (154, 129582), (161, 123948), (198, 100786), (207, 96404), (231, 86388), (252, 79189), (253, 78876), (276, 72303), (308, 64791), (313, 63756), (322, 61974), (396, 50393), (414, 48202), (462, 43194), (483, 41316), (506, 39438), (626, 31878), (644, 30987), (693, 28796), (759, 26292), (828, 24101), (924, 21597), (939, 21252), (966, 20658), (1012, 19719), (1252, 15939), (1386, 14398), (1449, 13772), (1518, 13146), (1771, 11268), (1878, 10626), (1932, 10329), (2191, 9108), (2277, 8764), (2772, 7199), (2817, 7084), (2898, 6886), (3036, 6573), (3443, 5796), (3542, 5634), (3756, 5313), (4382, 4554)]