21149674728

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{61681}}^1$

素因数の和:61867

約数の個数: 128

約数和(自身を含む): 65491480320

約数和(自身を除く): 44341805592

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 157, 168, 182, 273, 312, 314, 364, 471, 546, 628, 728, 942, 1092, 1099, 1256, 1884, 2041, 2184, 2198, 3297, 3768, 4082, 4396, 6123, 6594, 8164, 8792, 12246, 13188, 14287, 16328, 24492, 26376, 28574, 42861, 48984, 57148, 61681, 85722, 114296, 123362, 171444, 185043, 246724, 342888, 370086, 431767, 493448, 740172, 801853, 863534, 1295301, 1480344, 1603706, 1727068, 2405559, 2590602, 3207412, 3454136, 4811118, 5181204, 5612971, 6414824, 9622236, 9683917, 10362408, 11225942, 16838913, 19244472, 19367834, 22451884, 29051751, 33677826, 38735668, 44903768, 58103502, 67355652, 67787419, 77471336, 116207004, 125890921, 134711304, 135574838, 203362257, 232414008, 251781842, 271149676, 377672763, 406724514, 503563684, 542299352, 755345526, 813449028, 881236447, 1007127368, 1510691052, 1626898056, 1762472894, 2643709341, 3021382104, 3524945788, 5287418682, 7049891576, 10574837364, 21149674728]

約数ペア:

[(1, 21149674728), (2, 10574837364), (3, 7049891576), (4, 5287418682), (6, 3524945788), (7, 3021382104), (8, 2643709341), (12, 1762472894), (13, 1626898056), (14, 1510691052), (21, 1007127368), (24, 881236447), (26, 813449028), (28, 755345526), (39, 542299352), (42, 503563684), (52, 406724514), (56, 377672763), (78, 271149676), (84, 251781842), (91, 232414008), (104, 203362257), (156, 135574838), (157, 134711304), (168, 125890921), (182, 116207004), (273, 77471336), (312, 67787419), (314, 67355652), (364, 58103502), (471, 44903768), (546, 38735668), (628, 33677826), (728, 29051751), (942, 22451884), (1092, 19367834), (1099, 19244472), (1256, 16838913), (1884, 11225942), (2041, 10362408), (2184, 9683917), (2198, 9622236), (3297, 6414824), (3768, 5612971), (4082, 5181204), (4396, 4811118), (6123, 3454136), (6594, 3207412), (8164, 2590602), (8792, 2405559), (12246, 1727068), (13188, 1603706), (14287, 1480344), (16328, 1295301), (24492, 863534), (26376, 801853), (28574, 740172), (42861, 493448), (48984, 431767), (57148, 370086), (61681, 342888), (85722, 246724), (114296, 185043), (123362, 171444)]