21148128

素因数分解:

$2^5\times 3^4\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:262

約数の個数: 120

約数和(自身を含む): 64033200

約数和(自身を除く): 42885072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 41, 48, 54, 72, 81, 82, 96, 108, 123, 144, 162, 164, 199, 216, 246, 288, 324, 328, 369, 398, 432, 492, 597, 648, 656, 738, 796, 864, 984, 1107, 1194, 1296, 1312, 1476, 1592, 1791, 1968, 2214, 2388, 2592, 2952, 3184, 3321, 3582, 3936, 4428, 4776, 5373, 5904, 6368, 6642, 7164, 8159, 8856, 9552, 10746, 11808, 13284, 14328, 16119, 16318, 17712, 19104, 21492, 24477, 26568, 28656, 32238, 32636, 35424, 42984, 48954, 53136, 57312, 64476, 65272, 73431, 85968, 97908, 106272, 128952, 130544, 146862, 171936, 195816, 220293, 257904, 261088, 293724, 391632, 440586, 515808, 587448, 660879, 783264, 881172, 1174896, 1321758, 1762344, 2349792, 2643516, 3524688, 5287032, 7049376, 10574064, 21148128]

約数ペア:

[(1, 21148128), (2, 10574064), (3, 7049376), (4, 5287032), (6, 3524688), (8, 2643516), (9, 2349792), (12, 1762344), (16, 1321758), (18, 1174896), (24, 881172), (27, 783264), (32, 660879), (36, 587448), (41, 515808), (48, 440586), (54, 391632), (72, 293724), (81, 261088), (82, 257904), (96, 220293), (108, 195816), (123, 171936), (144, 146862), (162, 130544), (164, 128952), (199, 106272), (216, 97908), (246, 85968), (288, 73431), (324, 65272), (328, 64476), (369, 57312), (398, 53136), (432, 48954), (492, 42984), (597, 35424), (648, 32636), (656, 32238), (738, 28656), (796, 26568), (864, 24477), (984, 21492), (1107, 19104), (1194, 17712), (1296, 16318), (1312, 16119), (1476, 14328), (1592, 13284), (1791, 11808), (1968, 10746), (2214, 9552), (2388, 8856), (2592, 8159), (2952, 7164), (3184, 6642), (3321, 6368), (3582, 5904), (3936, 5373), (4428, 4776)]