21531744

素因数分解:

$2^5\times 3^6\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:112

約数の個数: 168

約数和(自身を含む): 69409872

約数和(自身を除く): 47878128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 71, 72, 78, 81, 96, 104, 108, 117, 142, 144, 156, 162, 208, 213, 216, 234, 243, 284, 288, 312, 324, 351, 416, 426, 432, 468, 486, 568, 624, 639, 648, 702, 729, 852, 864, 923, 936, 972, 1053, 1136, 1248, 1278, 1296, 1404, 1458, 1704, 1846, 1872, 1917, 1944, 2106, 2272, 2556, 2592, 2769, 2808, 2916, 3159, 3408, 3692, 3744, 3834, 3888, 4212, 5112, 5538, 5616, 5751, 5832, 6318, 6816, 7384, 7668, 7776, 8307, 8424, 9477, 10224, 11076, 11232, 11502, 11664, 12636, 14768, 15336, 16614, 16848, 17253, 18954, 20448, 22152, 23004, 23328, 24921, 25272, 29536, 30672, 33228, 33696, 34506, 37908, 44304, 46008, 49842, 50544, 51759, 61344, 66456, 69012, 74763, 75816, 88608, 92016, 99684, 101088, 103518, 132912, 138024, 149526, 151632, 184032, 199368, 207036, 224289, 265824, 276048, 299052, 303264, 398736, 414072, 448578, 552096, 598104, 672867, 797472, 828144, 897156, 1196208, 1345734, 1656288, 1794312, 2392416, 2691468, 3588624, 5382936, 7177248, 10765872, 21531744]

約数ペア:

[(1, 21531744), (2, 10765872), (3, 7177248), (4, 5382936), (6, 3588624), (8, 2691468), (9, 2392416), (12, 1794312), (13, 1656288), (16, 1345734), (18, 1196208), (24, 897156), (26, 828144), (27, 797472), (32, 672867), (36, 598104), (39, 552096), (48, 448578), (52, 414072), (54, 398736), (71, 303264), (72, 299052), (78, 276048), (81, 265824), (96, 224289), (104, 207036), (108, 199368), (117, 184032), (142, 151632), (144, 149526), (156, 138024), (162, 132912), (208, 103518), (213, 101088), (216, 99684), (234, 92016), (243, 88608), (284, 75816), (288, 74763), (312, 69012), (324, 66456), (351, 61344), (416, 51759), (426, 50544), (432, 49842), (468, 46008), (486, 44304), (568, 37908), (624, 34506), (639, 33696), (648, 33228), (702, 30672), (729, 29536), (852, 25272), (864, 24921), (923, 23328), (936, 23004), (972, 22152), (1053, 20448), (1136, 18954), (1248, 17253), (1278, 16848), (1296, 16614), (1404, 15336), (1458, 14768), (1704, 12636), (1846, 11664), (1872, 11502), (1917, 11232), (1944, 11076), (2106, 10224), (2272, 9477), (2556, 8424), (2592, 8307), (2769, 7776), (2808, 7668), (2916, 7384), (3159, 6816), (3408, 6318), (3692, 5832), (3744, 5751), (3834, 5616), (3888, 5538), (4212, 5112)]