21207186

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 41534766

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 33, 39, 42, 63, 66, 77, 78, 91, 99, 107, 117, 121, 126, 143, 154, 182, 198, 214, 231, 234, 242, 273, 286, 321, 363, 429, 462, 546, 642, 693, 726, 749, 819, 847, 858, 963, 1001, 1089, 1177, 1287, 1386, 1391, 1498, 1573, 1638, 1694, 1926, 2002, 2178, 2247, 2354, 2541, 2574, 2782, 3003, 3146, 3531, 4173, 4494, 4719, 5082, 6006, 6741, 7062, 7623, 8239, 8346, 9009, 9438, 9737, 10593, 11011, 12519, 12947, 13482, 14157, 15246, 15301, 16478, 18018, 19474, 21186, 22022, 24717, 25038, 25894, 28314, 29211, 30602, 33033, 38841, 45903, 49434, 58422, 66066, 74151, 77682, 87633, 90629, 91806, 99099, 107107, 116523, 137709, 148302, 168311, 175266, 181258, 198198, 214214, 233046, 271887, 275418, 321321, 336622, 504933, 543774, 642642, 815661, 963963, 1009866, 1178177, 1514799, 1631322, 1927926, 2356354, 3029598, 3534531, 7069062, 10603593, 21207186]

約数ペア:

[(1, 21207186), (2, 10603593), (3, 7069062), (6, 3534531), (7, 3029598), (9, 2356354), (11, 1927926), (13, 1631322), (14, 1514799), (18, 1178177), (21, 1009866), (22, 963963), (26, 815661), (33, 642642), (39, 543774), (42, 504933), (63, 336622), (66, 321321), (77, 275418), (78, 271887), (91, 233046), (99, 214214), (107, 198198), (117, 181258), (121, 175266), (126, 168311), (143, 148302), (154, 137709), (182, 116523), (198, 107107), (214, 99099), (231, 91806), (234, 90629), (242, 87633), (273, 77682), (286, 74151), (321, 66066), (363, 58422), (429, 49434), (462, 45903), (546, 38841), (642, 33033), (693, 30602), (726, 29211), (749, 28314), (819, 25894), (847, 25038), (858, 24717), (963, 22022), (1001, 21186), (1089, 19474), (1177, 18018), (1287, 16478), (1386, 15301), (1391, 15246), (1498, 14157), (1573, 13482), (1638, 12947), (1694, 12519), (1926, 11011), (2002, 10593), (2178, 9737), (2247, 9438), (2354, 9009), (2541, 8346), (2574, 8239), (2782, 7623), (3003, 7062), (3146, 6741), (3531, 6006), (4173, 5082), (4494, 4719)]