21388752

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1$

素因数の和:678

約数の個数: 160

約数和(自身を含む): 76661760

約数和(自身を除く): 55273008

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 48, 54, 56, 63, 66, 72, 77, 84, 88, 99, 108, 112, 126, 132, 144, 154, 168, 176, 189, 198, 216, 231, 252, 264, 297, 308, 336, 378, 396, 432, 462, 504, 528, 594, 616, 643, 693, 756, 792, 924, 1008, 1188, 1232, 1286, 1386, 1512, 1584, 1848, 1929, 2079, 2376, 2572, 2772, 3024, 3696, 3858, 4158, 4501, 4752, 5144, 5544, 5787, 7073, 7716, 8316, 9002, 10288, 11088, 11574, 13503, 14146, 15432, 16632, 17361, 18004, 21219, 23148, 27006, 28292, 30864, 33264, 34722, 36008, 40509, 42438, 46296, 49511, 54012, 56584, 63657, 69444, 72016, 81018, 84876, 92592, 99022, 108024, 113168, 121527, 127314, 138888, 148533, 162036, 169752, 190971, 198044, 216048, 243054, 254628, 277776, 297066, 324072, 339504, 381942, 396088, 445599, 486108, 509256, 594132, 648144, 763884, 792176, 891198, 972216, 1018512, 1188264, 1336797, 1527768, 1782396, 1944432, 2376528, 2673594, 3055536, 3564792, 5347188, 7129584, 10694376, 21388752]

約数ペア:

[(1, 21388752), (2, 10694376), (3, 7129584), (4, 5347188), (6, 3564792), (7, 3055536), (8, 2673594), (9, 2376528), (11, 1944432), (12, 1782396), (14, 1527768), (16, 1336797), (18, 1188264), (21, 1018512), (22, 972216), (24, 891198), (27, 792176), (28, 763884), (33, 648144), (36, 594132), (42, 509256), (44, 486108), (48, 445599), (54, 396088), (56, 381942), (63, 339504), (66, 324072), (72, 297066), (77, 277776), (84, 254628), (88, 243054), (99, 216048), (108, 198044), (112, 190971), (126, 169752), (132, 162036), (144, 148533), (154, 138888), (168, 127314), (176, 121527), (189, 113168), (198, 108024), (216, 99022), (231, 92592), (252, 84876), (264, 81018), (297, 72016), (308, 69444), (336, 63657), (378, 56584), (396, 54012), (432, 49511), (462, 46296), (504, 42438), (528, 40509), (594, 36008), (616, 34722), (643, 33264), (693, 30864), (756, 28292), (792, 27006), (924, 23148), (1008, 21219), (1188, 18004), (1232, 17361), (1286, 16632), (1386, 15432), (1512, 14146), (1584, 13503), (1848, 11574), (1929, 11088), (2079, 10288), (2376, 9002), (2572, 8316), (2772, 7716), (3024, 7073), (3696, 5787), (3858, 5544), (4158, 5144), (4501, 4752)]