21040152

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 44278248

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 53, 56, 68, 84, 102, 106, 119, 136, 139, 159, 168, 204, 212, 238, 278, 318, 357, 371, 408, 417, 424, 476, 556, 636, 714, 742, 834, 901, 952, 973, 1112, 1113, 1272, 1428, 1484, 1668, 1802, 1946, 2226, 2363, 2703, 2856, 2919, 2968, 3336, 3604, 3892, 4452, 4726, 5406, 5838, 6307, 7089, 7208, 7367, 7784, 8904, 9452, 10812, 11676, 12614, 14178, 14734, 16541, 18904, 18921, 21624, 22101, 23352, 25228, 28356, 29468, 33082, 37842, 44202, 49623, 50456, 51569, 56712, 58936, 66164, 75684, 88404, 99246, 103138, 125239, 132328, 151368, 154707, 176808, 198492, 206276, 250478, 309414, 375717, 396984, 412552, 500956, 618828, 751434, 876673, 1001912, 1237656, 1502868, 1753346, 2630019, 3005736, 3506692, 5260038, 7013384, 10520076, 21040152]

約数ペア:

[(1, 21040152), (2, 10520076), (3, 7013384), (4, 5260038), (6, 3506692), (7, 3005736), (8, 2630019), (12, 1753346), (14, 1502868), (17, 1237656), (21, 1001912), (24, 876673), (28, 751434), (34, 618828), (42, 500956), (51, 412552), (53, 396984), (56, 375717), (68, 309414), (84, 250478), (102, 206276), (106, 198492), (119, 176808), (136, 154707), (139, 151368), (159, 132328), (168, 125239), (204, 103138), (212, 99246), (238, 88404), (278, 75684), (318, 66164), (357, 58936), (371, 56712), (408, 51569), (417, 50456), (424, 49623), (476, 44202), (556, 37842), (636, 33082), (714, 29468), (742, 28356), (834, 25228), (901, 23352), (952, 22101), (973, 21624), (1112, 18921), (1113, 18904), (1272, 16541), (1428, 14734), (1484, 14178), (1668, 12614), (1802, 11676), (1946, 10812), (2226, 9452), (2363, 8904), (2703, 7784), (2856, 7367), (2919, 7208), (2968, 7089), (3336, 6307), (3604, 5838), (3892, 5406), (4452, 4726)]