21977604

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 67092480

約数和(自身を除く): 45114876

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 23, 33, 36, 38, 44, 46, 57, 66, 69, 76, 92, 99, 114, 127, 132, 138, 171, 198, 207, 209, 228, 253, 254, 276, 342, 381, 396, 414, 418, 437, 506, 508, 627, 684, 759, 762, 828, 836, 874, 1012, 1143, 1254, 1311, 1397, 1518, 1524, 1748, 1881, 2277, 2286, 2413, 2508, 2622, 2794, 2921, 3036, 3762, 3933, 4191, 4554, 4572, 4807, 4826, 5244, 5588, 5842, 7239, 7524, 7866, 8382, 8763, 9108, 9614, 9652, 11684, 12573, 14421, 14478, 15732, 16764, 17526, 19228, 21717, 25146, 26289, 26543, 28842, 28956, 32131, 35052, 43263, 43434, 50292, 52578, 53086, 55499, 57684, 64262, 79629, 86526, 86868, 96393, 105156, 106172, 110998, 128524, 159258, 166497, 173052, 192786, 221996, 238887, 289179, 318516, 332994, 385572, 477774, 499491, 578358, 610489, 665988, 955548, 998982, 1156716, 1220978, 1831467, 1997964, 2441956, 3662934, 5494401, 7325868, 10988802, 21977604]

約数ペア:

[(1, 21977604), (2, 10988802), (3, 7325868), (4, 5494401), (6, 3662934), (9, 2441956), (11, 1997964), (12, 1831467), (18, 1220978), (19, 1156716), (22, 998982), (23, 955548), (33, 665988), (36, 610489), (38, 578358), (44, 499491), (46, 477774), (57, 385572), (66, 332994), (69, 318516), (76, 289179), (92, 238887), (99, 221996), (114, 192786), (127, 173052), (132, 166497), (138, 159258), (171, 128524), (198, 110998), (207, 106172), (209, 105156), (228, 96393), (253, 86868), (254, 86526), (276, 79629), (342, 64262), (381, 57684), (396, 55499), (414, 53086), (418, 52578), (437, 50292), (506, 43434), (508, 43263), (627, 35052), (684, 32131), (759, 28956), (762, 28842), (828, 26543), (836, 26289), (874, 25146), (1012, 21717), (1143, 19228), (1254, 17526), (1311, 16764), (1397, 15732), (1518, 14478), (1524, 14421), (1748, 12573), (1881, 11684), (2277, 9652), (2286, 9614), (2413, 9108), (2508, 8763), (2622, 8382), (2794, 7866), (2921, 7524), (3036, 7239), (3762, 5842), (3933, 5588), (4191, 5244), (4554, 4826), (4572, 4807)]