21680249724

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{83}}^1\times {\mathrm{16453}}^1$

素因数の和:16566

約数の個数: 180

約数和(自身を含む): 66728143944

約数和(自身を除く): 45047894220

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 83, 84, 98, 108, 126, 147, 162, 166, 189, 196, 249, 252, 294, 324, 332, 378, 441, 498, 567, 581, 588, 747, 756, 882, 996, 1134, 1162, 1323, 1494, 1743, 1764, 2241, 2268, 2324, 2646, 2988, 3486, 3969, 4067, 4482, 5229, 5292, 6723, 6972, 7938, 8134, 8964, 10458, 12201, 13446, 15687, 15876, 16268, 16453, 20916, 24402, 26892, 31374, 32906, 36603, 47061, 48804, 49359, 62748, 65812, 73206, 94122, 98718, 109809, 115171, 146412, 148077, 188244, 197436, 219618, 230342, 296154, 329427, 345513, 439236, 444231, 460684, 592308, 658854, 691026, 806197, 888462, 1036539, 1317708, 1332693, 1365599, 1382052, 1612394, 1776924, 2073078, 2418591, 2665386, 2731198, 3109617, 3224788, 4096797, 4146156, 4837182, 5330772, 5462396, 6219234, 7255773, 8193594, 9328851, 9559193, 9674364, 12290391, 12438468, 14511546, 16387188, 18657702, 19118386, 21767319, 24580782, 28677579, 29023092, 36871173, 37315404, 38236772, 43534638, 49161564, 57355158, 65301957, 66914351, 73742346, 86032737, 87069276, 110613519, 114710316, 130603914, 133828702, 147484692, 172065474, 200743053, 221227038, 258098211, 261207828, 267657404, 344130948, 401486106, 442454076, 516196422, 602229159, 774294633, 802972212, 1032392844, 1204458318, 1548589266, 1806687477, 2408916636, 3097178532, 3613374954, 5420062431, 7226749908, 10840124862, 21680249724]

約数ペア:

[(1, 21680249724), (2, 10840124862), (3, 7226749908), (4, 5420062431), (6, 3613374954), (7, 3097178532), (9, 2408916636), (12, 1806687477), (14, 1548589266), (18, 1204458318), (21, 1032392844), (27, 802972212), (28, 774294633), (36, 602229159), (42, 516196422), (49, 442454076), (54, 401486106), (63, 344130948), (81, 267657404), (83, 261207828), (84, 258098211), (98, 221227038), (108, 200743053), (126, 172065474), (147, 147484692), (162, 133828702), (166, 130603914), (189, 114710316), (196, 110613519), (249, 87069276), (252, 86032737), (294, 73742346), (324, 66914351), (332, 65301957), (378, 57355158), (441, 49161564), (498, 43534638), (567, 38236772), (581, 37315404), (588, 36871173), (747, 29023092), (756, 28677579), (882, 24580782), (996, 21767319), (1134, 19118386), (1162, 18657702), (1323, 16387188), (1494, 14511546), (1743, 12438468), (1764, 12290391), (2241, 9674364), (2268, 9559193), (2324, 9328851), (2646, 8193594), (2988, 7255773), (3486, 6219234), (3969, 5462396), (4067, 5330772), (4482, 4837182), (5229, 4146156), (5292, 4096797), (6723, 3224788), (6972, 3109617), (7938, 2731198), (8134, 2665386), (8964, 2418591), (10458, 2073078), (12201, 1776924), (13446, 1612394), (15687, 1382052), (15876, 1365599), (16268, 1332693), (16453, 1317708), (20916, 1036539), (24402, 888462), (26892, 806197), (31374, 691026), (32906, 658854), (36603, 592308), (47061, 460684), (48804, 444231), (49359, 439236), (62748, 345513), (65812, 329427), (73206, 296154), (94122, 230342), (98718, 219618), (109809, 197436), (115171, 188244), (146412, 148077)]