21204576

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 144

約数和(自身を含む): 65808288

約数和(自身を除く): 44603712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 61, 68, 71, 72, 96, 102, 122, 136, 142, 144, 153, 183, 204, 213, 244, 272, 284, 288, 306, 366, 408, 426, 488, 544, 549, 568, 612, 639, 732, 816, 852, 976, 1037, 1098, 1136, 1207, 1224, 1278, 1464, 1632, 1704, 1952, 2074, 2196, 2272, 2414, 2448, 2556, 2928, 3111, 3408, 3621, 4148, 4331, 4392, 4828, 4896, 5112, 5856, 6222, 6816, 7242, 8296, 8662, 8784, 9333, 9656, 10224, 10863, 12444, 12993, 14484, 16592, 17324, 17568, 18666, 19312, 20448, 21726, 24888, 25986, 28968, 33184, 34648, 37332, 38624, 38979, 43452, 49776, 51972, 57936, 69296, 73627, 74664, 77958, 86904, 99552, 103944, 115872, 138592, 147254, 149328, 155916, 173808, 207888, 220881, 294508, 298656, 311832, 347616, 415776, 441762, 589016, 623664, 662643, 883524, 1178032, 1247328, 1325286, 1767048, 2356064, 2650572, 3534096, 5301144, 7068192, 10602288, 21204576]

約数ペア:

[(1, 21204576), (2, 10602288), (3, 7068192), (4, 5301144), (6, 3534096), (8, 2650572), (9, 2356064), (12, 1767048), (16, 1325286), (17, 1247328), (18, 1178032), (24, 883524), (32, 662643), (34, 623664), (36, 589016), (48, 441762), (51, 415776), (61, 347616), (68, 311832), (71, 298656), (72, 294508), (96, 220881), (102, 207888), (122, 173808), (136, 155916), (142, 149328), (144, 147254), (153, 138592), (183, 115872), (204, 103944), (213, 99552), (244, 86904), (272, 77958), (284, 74664), (288, 73627), (306, 69296), (366, 57936), (408, 51972), (426, 49776), (488, 43452), (544, 38979), (549, 38624), (568, 37332), (612, 34648), (639, 33184), (732, 28968), (816, 25986), (852, 24888), (976, 21726), (1037, 20448), (1098, 19312), (1136, 18666), (1207, 17568), (1224, 17324), (1278, 16592), (1464, 14484), (1632, 12993), (1704, 12444), (1952, 10863), (2074, 10224), (2196, 9656), (2272, 9333), (2414, 8784), (2448, 8662), (2556, 8296), (2928, 7242), (3111, 6816), (3408, 6222), (3621, 5856), (4148, 5112), (4331, 4896), (4392, 4828)]