21400848

素因数分解:

$2^4\times 3^4\times 7^2\times {\mathrm{337}}^1$

素因数の和:371

約数の個数: 150

約数和(自身を含む): 72266766

約数和(自身を除く): 50865918

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 98, 108, 112, 126, 144, 147, 162, 168, 189, 196, 216, 252, 294, 324, 336, 337, 378, 392, 432, 441, 504, 567, 588, 648, 674, 756, 784, 882, 1008, 1011, 1134, 1176, 1296, 1323, 1348, 1512, 1764, 2022, 2268, 2352, 2359, 2646, 2696, 3024, 3033, 3528, 3969, 4044, 4536, 4718, 5292, 5392, 6066, 7056, 7077, 7938, 8088, 9072, 9099, 9436, 10584, 12132, 14154, 15876, 16176, 16513, 18198, 18872, 21168, 21231, 24264, 27297, 28308, 31752, 33026, 36396, 37744, 42462, 48528, 49539, 54594, 56616, 63504, 63693, 66052, 72792, 84924, 99078, 109188, 113232, 127386, 132104, 145584, 148617, 169848, 191079, 198156, 218376, 254772, 264208, 297234, 339696, 382158, 396312, 436752, 445851, 509544, 594468, 764316, 792624, 891702, 1019088, 1188936, 1337553, 1528632, 1783404, 2377872, 2675106, 3057264, 3566808, 5350212, 7133616, 10700424, 21400848]

約数ペア:

[(1, 21400848), (2, 10700424), (3, 7133616), (4, 5350212), (6, 3566808), (7, 3057264), (8, 2675106), (9, 2377872), (12, 1783404), (14, 1528632), (16, 1337553), (18, 1188936), (21, 1019088), (24, 891702), (27, 792624), (28, 764316), (36, 594468), (42, 509544), (48, 445851), (49, 436752), (54, 396312), (56, 382158), (63, 339696), (72, 297234), (81, 264208), (84, 254772), (98, 218376), (108, 198156), (112, 191079), (126, 169848), (144, 148617), (147, 145584), (162, 132104), (168, 127386), (189, 113232), (196, 109188), (216, 99078), (252, 84924), (294, 72792), (324, 66052), (336, 63693), (337, 63504), (378, 56616), (392, 54594), (432, 49539), (441, 48528), (504, 42462), (567, 37744), (588, 36396), (648, 33026), (674, 31752), (756, 28308), (784, 27297), (882, 24264), (1008, 21231), (1011, 21168), (1134, 18872), (1176, 18198), (1296, 16513), (1323, 16176), (1348, 15876), (1512, 14154), (1764, 12132), (2022, 10584), (2268, 9436), (2352, 9099), (2359, 9072), (2646, 8088), (2696, 7938), (3024, 7077), (3033, 7056), (3528, 6066), (3969, 5392), (4044, 5292), (4536, 4718)]