217028868

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 648273024

約数和(自身を除く): 431244156

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 51, 57, 68, 76, 84, 102, 114, 119, 133, 204, 228, 238, 266, 323, 357, 361, 399, 421, 476, 532, 646, 714, 722, 798, 842, 969, 1083, 1263, 1292, 1428, 1444, 1596, 1684, 1938, 2166, 2261, 2526, 2527, 2947, 3876, 4332, 4522, 5052, 5054, 5894, 6137, 6783, 7157, 7581, 7999, 8841, 9044, 10108, 11788, 12274, 13566, 14314, 15162, 15998, 17682, 18411, 21471, 23997, 24548, 27132, 28628, 30324, 31996, 35364, 36822, 42942, 42959, 47994, 50099, 55993, 73644, 85884, 85918, 95988, 100198, 111986, 128877, 135983, 150297, 151981, 167979, 171836, 200396, 223972, 257754, 271966, 300594, 303962, 335958, 407949, 455943, 515508, 543932, 601188, 607924, 671916, 815898, 911886, 951881, 1063867, 1631796, 1823772, 1903762, 2127734, 2583677, 2855643, 3191601, 3807524, 4255468, 5167354, 5711286, 6383202, 7751031, 10334708, 11422572, 12766404, 15502062, 18085739, 31004124, 36171478, 54257217, 72342956, 108514434, 217028868]

約数ペア:

[(1, 217028868), (2, 108514434), (3, 72342956), (4, 54257217), (6, 36171478), (7, 31004124), (12, 18085739), (14, 15502062), (17, 12766404), (19, 11422572), (21, 10334708), (28, 7751031), (34, 6383202), (38, 5711286), (42, 5167354), (51, 4255468), (57, 3807524), (68, 3191601), (76, 2855643), (84, 2583677), (102, 2127734), (114, 1903762), (119, 1823772), (133, 1631796), (204, 1063867), (228, 951881), (238, 911886), (266, 815898), (323, 671916), (357, 607924), (361, 601188), (399, 543932), (421, 515508), (476, 455943), (532, 407949), (646, 335958), (714, 303962), (722, 300594), (798, 271966), (842, 257754), (969, 223972), (1083, 200396), (1263, 171836), (1292, 167979), (1428, 151981), (1444, 150297), (1596, 135983), (1684, 128877), (1938, 111986), (2166, 100198), (2261, 95988), (2526, 85918), (2527, 85884), (2947, 73644), (3876, 55993), (4332, 50099), (4522, 47994), (5052, 42959), (5054, 42942), (5894, 36822), (6137, 35364), (6783, 31996), (7157, 30324), (7581, 28628), (7999, 27132), (8841, 24548), (9044, 23997), (10108, 21471), (11788, 18411), (12274, 17682), (13566, 15998), (14314, 15162)]