21137528286

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{10789}}^1$

素因数の和:10951

約数の個数: 128

約数和(自身を含む): 55189555200

約数和(自身を除く): 34052026914

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 73, 126, 142, 146, 189, 213, 219, 378, 426, 438, 497, 511, 639, 657, 994, 1022, 1278, 1314, 1491, 1533, 1917, 1971, 2982, 3066, 3834, 3942, 4473, 4599, 5183, 8946, 9198, 10366, 10789, 13419, 13797, 15549, 21578, 26838, 27594, 31098, 32367, 36281, 46647, 64734, 72562, 75523, 93294, 97101, 108843, 139941, 151046, 194202, 217686, 226569, 279882, 291303, 326529, 453138, 582606, 653058, 679707, 766019, 787597, 979587, 1359414, 1532038, 1575194, 1959174, 2039121, 2298057, 2362791, 4078242, 4596114, 4725582, 5362133, 5513179, 6894171, 7088373, 10724266, 11026358, 13788342, 14176746, 16086399, 16539537, 20682513, 21265119, 32172798, 33079074, 41365026, 42530238, 48259197, 49618611, 55919387, 96518394, 99237222, 111838774, 144777591, 148855833, 167758161, 289555182, 297711666, 335516322, 391435709, 503274483, 782871418, 1006548966, 1174307127, 1509823449, 2348614254, 3019646898, 3522921381, 7045842762, 10568764143, 21137528286]

約数ペア:

[(1, 21137528286), (2, 10568764143), (3, 7045842762), (6, 3522921381), (7, 3019646898), (9, 2348614254), (14, 1509823449), (18, 1174307127), (21, 1006548966), (27, 782871418), (42, 503274483), (54, 391435709), (63, 335516322), (71, 297711666), (73, 289555182), (126, 167758161), (142, 148855833), (146, 144777591), (189, 111838774), (213, 99237222), (219, 96518394), (378, 55919387), (426, 49618611), (438, 48259197), (497, 42530238), (511, 41365026), (639, 33079074), (657, 32172798), (994, 21265119), (1022, 20682513), (1278, 16539537), (1314, 16086399), (1491, 14176746), (1533, 13788342), (1917, 11026358), (1971, 10724266), (2982, 7088373), (3066, 6894171), (3834, 5513179), (3942, 5362133), (4473, 4725582), (4599, 4596114), (5183, 4078242), (8946, 2362791), (9198, 2298057), (10366, 2039121), (10789, 1959174), (13419, 1575194), (13797, 1532038), (15549, 1359414), (21578, 979587), (26838, 787597), (27594, 766019), (31098, 679707), (32367, 653058), (36281, 582606), (46647, 453138), (64734, 326529), (72562, 291303), (75523, 279882), (93294, 226569), (97101, 217686), (108843, 194202), (139941, 151046)]