21273588

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 44770572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 41, 42, 58, 63, 71, 82, 84, 87, 116, 123, 126, 142, 164, 174, 203, 213, 246, 252, 261, 284, 287, 348, 369, 406, 426, 492, 497, 522, 574, 609, 639, 738, 812, 852, 861, 994, 1044, 1148, 1189, 1218, 1278, 1476, 1491, 1722, 1827, 1988, 2059, 2378, 2436, 2556, 2583, 2911, 2982, 3444, 3567, 3654, 4118, 4473, 4756, 5166, 5822, 5964, 6177, 7134, 7308, 8236, 8323, 8733, 8946, 10332, 10701, 11644, 12354, 14268, 14413, 16646, 17466, 17892, 18531, 20377, 21402, 24708, 24969, 26199, 28826, 33292, 34932, 37062, 40754, 42804, 43239, 49938, 52398, 57652, 61131, 74124, 74907, 81508, 84419, 86478, 99876, 104796, 122262, 129717, 149814, 168838, 172956, 183393, 244524, 253257, 259434, 299628, 337676, 366786, 506514, 518868, 590933, 733572, 759771, 1013028, 1181866, 1519542, 1772799, 2363732, 3039084, 3545598, 5318397, 7091196, 10636794, 21273588]

約数ペア:

[(1, 21273588), (2, 10636794), (3, 7091196), (4, 5318397), (6, 3545598), (7, 3039084), (9, 2363732), (12, 1772799), (14, 1519542), (18, 1181866), (21, 1013028), (28, 759771), (29, 733572), (36, 590933), (41, 518868), (42, 506514), (58, 366786), (63, 337676), (71, 299628), (82, 259434), (84, 253257), (87, 244524), (116, 183393), (123, 172956), (126, 168838), (142, 149814), (164, 129717), (174, 122262), (203, 104796), (213, 99876), (246, 86478), (252, 84419), (261, 81508), (284, 74907), (287, 74124), (348, 61131), (369, 57652), (406, 52398), (426, 49938), (492, 43239), (497, 42804), (522, 40754), (574, 37062), (609, 34932), (639, 33292), (738, 28826), (812, 26199), (852, 24969), (861, 24708), (994, 21402), (1044, 20377), (1148, 18531), (1189, 17892), (1218, 17466), (1278, 16646), (1476, 14413), (1491, 14268), (1722, 12354), (1827, 11644), (1988, 10701), (2059, 10332), (2378, 8946), (2436, 8733), (2556, 8323), (2583, 8236), (2911, 7308), (2982, 7134), (3444, 6177), (3567, 5964), (3654, 5822), (4118, 5166), (4473, 4756)]