1721385484

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:149

約数の個数: 216

約数和(自身を含む): 4215642480

約数和(自身を除く): 2494256996

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 31, 37, 38, 49, 52, 62, 74, 76, 91, 98, 124, 133, 148, 182, 196, 217, 247, 259, 266, 364, 403, 434, 481, 494, 518, 532, 589, 637, 703, 806, 868, 931, 961, 962, 988, 1036, 1147, 1178, 1274, 1406, 1519, 1612, 1729, 1813, 1862, 1922, 1924, 2294, 2356, 2548, 2812, 2821, 3038, 3367, 3458, 3626, 3724, 3844, 4123, 4588, 4921, 5642, 6076, 6727, 6734, 6916, 7252, 7657, 8029, 8246, 9139, 9842, 11284, 12103, 12493, 13454, 13468, 14911, 15314, 16058, 16492, 18259, 18278, 19684, 19747, 21793, 23569, 24206, 24986, 26908, 28861, 29822, 30628, 32116, 34447, 35557, 36518, 36556, 39494, 43586, 47089, 47138, 48412, 49972, 53599, 56203, 57722, 59644, 63973, 68894, 71114, 73036, 78988, 87172, 87451, 94178, 94276, 104377, 107198, 112406, 115444, 127813, 127946, 137788, 142228, 152551, 174902, 188356, 208754, 214396, 224812, 237367, 248899, 255626, 255892, 283309, 305102, 349804, 375193, 417508, 447811, 462241, 474734, 497798, 511252, 566618, 610204, 612157, 675583, 730639, 750386, 894691, 895622, 924482, 949468, 995596, 1067857, 1133236, 1224314, 1351166, 1461278, 1500772, 1661569, 1742293, 1789382, 1791244, 1848964, 1983163, 2135714, 2448628, 2702332, 2922556, 3235687, 3323138, 3484586, 3578764, 3966326, 4271428, 4729081, 6471374, 6646276, 6969172, 7932652, 8782579, 9458162, 11630983, 12942748, 13882141, 17565158, 18916324, 22649809, 23261966, 27764282, 33103567, 35130316, 45299618, 46523932, 55528564, 61478053, 66207134, 90599236, 122956106, 132414268, 245912212, 430346371, 860692742, 1721385484]

約数ペア:

[(1, 1721385484), (2, 860692742), (4, 430346371), (7, 245912212), (13, 132414268), (14, 122956106), (19, 90599236), (26, 66207134), (28, 61478053), (31, 55528564), (37, 46523932), (38, 45299618), (49, 35130316), (52, 33103567), (62, 27764282), (74, 23261966), (76, 22649809), (91, 18916324), (98, 17565158), (124, 13882141), (133, 12942748), (148, 11630983), (182, 9458162), (196, 8782579), (217, 7932652), (247, 6969172), (259, 6646276), (266, 6471374), (364, 4729081), (403, 4271428), (434, 3966326), (481, 3578764), (494, 3484586), (518, 3323138), (532, 3235687), (589, 2922556), (637, 2702332), (703, 2448628), (806, 2135714), (868, 1983163), (931, 1848964), (961, 1791244), (962, 1789382), (988, 1742293), (1036, 1661569), (1147, 1500772), (1178, 1461278), (1274, 1351166), (1406, 1224314), (1519, 1133236), (1612, 1067857), (1729, 995596), (1813, 949468), (1862, 924482), (1922, 895622), (1924, 894691), (2294, 750386), (2356, 730639), (2548, 675583), (2812, 612157), (2821, 610204), (3038, 566618), (3367, 511252), (3458, 497798), (3626, 474734), (3724, 462241), (3844, 447811), (4123, 417508), (4588, 375193), (4921, 349804), (5642, 305102), (6076, 283309), (6727, 255892), (6734, 255626), (6916, 248899), (7252, 237367), (7657, 224812), (8029, 214396), (8246, 208754), (9139, 188356), (9842, 174902), (11284, 152551), (12103, 142228), (12493, 137788), (13454, 127946), (13468, 127813), (14911, 115444), (15314, 112406), (16058, 107198), (16492, 104377), (18259, 94276), (18278, 94178), (19684, 87451), (19747, 87172), (21793, 78988), (23569, 73036), (24206, 71114), (24986, 68894), (26908, 63973), (28861, 59644), (29822, 57722), (30628, 56203), (32116, 53599), (34447, 49972), (35557, 48412), (36518, 47138), (36556, 47089), (39494, 43586)]