21131952

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 160

約数和(自身を含む): 64281600

約数和(自身を除く): 43149648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 19, 24, 29, 34, 38, 47, 48, 51, 57, 58, 68, 76, 87, 94, 102, 114, 116, 136, 141, 152, 174, 188, 204, 228, 232, 272, 282, 304, 323, 348, 376, 408, 456, 464, 493, 551, 564, 646, 696, 752, 799, 816, 893, 912, 969, 986, 1102, 1128, 1292, 1363, 1392, 1479, 1598, 1653, 1786, 1938, 1972, 2204, 2256, 2397, 2584, 2679, 2726, 2958, 3196, 3306, 3572, 3876, 3944, 4089, 4408, 4794, 5168, 5358, 5452, 5916, 6392, 6612, 7144, 7752, 7888, 8178, 8816, 9367, 9588, 10716, 10904, 11832, 12784, 13224, 14288, 15181, 15504, 16356, 18734, 19176, 21432, 21808, 23171, 23664, 25897, 26448, 28101, 30362, 32712, 37468, 38352, 42864, 45543, 46342, 51794, 56202, 60724, 65424, 69513, 74936, 77691, 91086, 92684, 103588, 112404, 121448, 139026, 149872, 155382, 182172, 185368, 207176, 224808, 242896, 278052, 310764, 364344, 370736, 414352, 440249, 449616, 556104, 621528, 728688, 880498, 1112208, 1243056, 1320747, 1760996, 2641494, 3521992, 5282988, 7043984, 10565976, 21131952]

約数ペア:

[(1, 21131952), (2, 10565976), (3, 7043984), (4, 5282988), (6, 3521992), (8, 2641494), (12, 1760996), (16, 1320747), (17, 1243056), (19, 1112208), (24, 880498), (29, 728688), (34, 621528), (38, 556104), (47, 449616), (48, 440249), (51, 414352), (57, 370736), (58, 364344), (68, 310764), (76, 278052), (87, 242896), (94, 224808), (102, 207176), (114, 185368), (116, 182172), (136, 155382), (141, 149872), (152, 139026), (174, 121448), (188, 112404), (204, 103588), (228, 92684), (232, 91086), (272, 77691), (282, 74936), (304, 69513), (323, 65424), (348, 60724), (376, 56202), (408, 51794), (456, 46342), (464, 45543), (493, 42864), (551, 38352), (564, 37468), (646, 32712), (696, 30362), (752, 28101), (799, 26448), (816, 25897), (893, 23664), (912, 23171), (969, 21808), (986, 21432), (1102, 19176), (1128, 18734), (1292, 16356), (1363, 15504), (1392, 15181), (1479, 14288), (1598, 13224), (1653, 12784), (1786, 11832), (1938, 10904), (1972, 10716), (2204, 9588), (2256, 9367), (2397, 8816), (2584, 8178), (2679, 7888), (2726, 7752), (2958, 7144), (3196, 6612), (3306, 6392), (3572, 5916), (3876, 5452), (3944, 5358), (4089, 5168), (4408, 4794)]