21643578

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 31578822

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 83, 99, 166, 198, 249, 297, 439, 498, 594, 747, 878, 913, 1317, 1494, 1826, 2241, 2634, 2739, 3951, 4482, 4829, 5478, 7902, 8217, 9658, 11853, 14487, 16434, 23706, 24651, 28974, 36437, 43461, 49302, 72874, 86922, 109311, 130383, 218622, 260766, 327933, 400807, 655866, 801614, 983799, 1202421, 1967598, 2404842, 3607263, 7214526, 10821789, 21643578]

約数ペア:

[(1, 21643578), (2, 10821789), (3, 7214526), (6, 3607263), (9, 2404842), (11, 1967598), (18, 1202421), (22, 983799), (27, 801614), (33, 655866), (54, 400807), (66, 327933), (83, 260766), (99, 218622), (166, 130383), (198, 109311), (249, 86922), (297, 72874), (439, 49302), (498, 43461), (594, 36437), (747, 28974), (878, 24651), (913, 23706), (1317, 16434), (1494, 14487), (1826, 11853), (2241, 9658), (2634, 8217), (2739, 7902), (3951, 5478), (4482, 4829)]