21605584

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 160

約数和(自身を含む): 59996160

約数和(自身を除く): 38390576

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 19, 22, 26, 28, 38, 44, 52, 56, 71, 76, 77, 88, 91, 104, 112, 133, 142, 143, 152, 154, 176, 182, 208, 209, 247, 266, 284, 286, 304, 308, 364, 418, 494, 497, 532, 568, 572, 616, 728, 781, 836, 923, 988, 994, 1001, 1064, 1136, 1144, 1232, 1349, 1456, 1463, 1562, 1672, 1729, 1846, 1976, 1988, 2002, 2128, 2288, 2698, 2717, 2926, 3124, 3344, 3458, 3692, 3952, 3976, 4004, 5396, 5434, 5467, 5852, 6248, 6461, 6916, 7384, 7952, 8008, 9443, 10153, 10792, 10868, 10934, 11704, 12496, 12922, 13832, 14768, 14839, 16016, 17537, 18886, 19019, 20306, 21584, 21736, 21868, 23408, 25844, 27664, 29678, 35074, 37772, 38038, 40612, 43472, 43736, 51688, 59356, 70148, 71071, 75544, 76076, 81224, 87472, 103376, 103873, 118712, 122759, 140296, 142142, 151088, 152152, 162448, 192907, 207746, 237424, 245518, 280592, 284284, 304304, 385814, 415492, 491036, 568568, 771628, 830984, 982072, 1137136, 1350349, 1543256, 1661968, 1964144, 2700698, 3086512, 5401396, 10802792, 21605584]

約数ペア:

[(1, 21605584), (2, 10802792), (4, 5401396), (7, 3086512), (8, 2700698), (11, 1964144), (13, 1661968), (14, 1543256), (16, 1350349), (19, 1137136), (22, 982072), (26, 830984), (28, 771628), (38, 568568), (44, 491036), (52, 415492), (56, 385814), (71, 304304), (76, 284284), (77, 280592), (88, 245518), (91, 237424), (104, 207746), (112, 192907), (133, 162448), (142, 152152), (143, 151088), (152, 142142), (154, 140296), (176, 122759), (182, 118712), (208, 103873), (209, 103376), (247, 87472), (266, 81224), (284, 76076), (286, 75544), (304, 71071), (308, 70148), (364, 59356), (418, 51688), (494, 43736), (497, 43472), (532, 40612), (568, 38038), (572, 37772), (616, 35074), (728, 29678), (781, 27664), (836, 25844), (923, 23408), (988, 21868), (994, 21736), (1001, 21584), (1064, 20306), (1136, 19019), (1144, 18886), (1232, 17537), (1349, 16016), (1456, 14839), (1463, 14768), (1562, 13832), (1672, 12922), (1729, 12496), (1846, 11704), (1976, 10934), (1988, 10868), (2002, 10792), (2128, 10153), (2288, 9443), (2698, 8008), (2717, 7952), (2926, 7384), (3124, 6916), (3344, 6461), (3458, 6248), (3692, 5852), (3952, 5467), (3976, 5434), (4004, 5396)]