21479346

素因数分解:

$2^1\times 3^2\times 7^5\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 55059264

約数和(自身を除く): 33579918

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 71, 98, 126, 142, 147, 213, 294, 343, 426, 441, 497, 639, 686, 882, 994, 1029, 1278, 1491, 2058, 2401, 2982, 3087, 3479, 4473, 4802, 6174, 6958, 7203, 8946, 10437, 14406, 16807, 20874, 21609, 24353, 31311, 33614, 43218, 48706, 50421, 62622, 73059, 100842, 146118, 151263, 170471, 219177, 302526, 340942, 438354, 511413, 1022826, 1193297, 1534239, 2386594, 3068478, 3579891, 7159782, 10739673, 21479346]

約数ペア:

[(1, 21479346), (2, 10739673), (3, 7159782), (6, 3579891), (7, 3068478), (9, 2386594), (14, 1534239), (18, 1193297), (21, 1022826), (42, 511413), (49, 438354), (63, 340942), (71, 302526), (98, 219177), (126, 170471), (142, 151263), (147, 146118), (213, 100842), (294, 73059), (343, 62622), (426, 50421), (441, 48706), (497, 43218), (639, 33614), (686, 31311), (882, 24353), (994, 21609), (1029, 20874), (1278, 16807), (1491, 14406), (2058, 10437), (2401, 8946), (2982, 7203), (3087, 6958), (3479, 6174), (4473, 4802)]