21591648

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 144

約数和(自身を含む): 67878720

約数和(自身を除く): 46287072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 73, 78, 79, 96, 104, 117, 144, 146, 156, 158, 208, 219, 234, 237, 288, 292, 312, 316, 416, 438, 468, 474, 584, 624, 632, 657, 711, 876, 936, 948, 949, 1027, 1168, 1248, 1264, 1314, 1422, 1752, 1872, 1896, 1898, 2054, 2336, 2528, 2628, 2844, 2847, 3081, 3504, 3744, 3792, 3796, 4108, 5256, 5688, 5694, 5767, 6162, 7008, 7584, 7592, 8216, 8541, 9243, 10512, 11376, 11388, 11534, 12324, 15184, 16432, 17082, 17301, 18486, 21024, 22752, 22776, 23068, 24648, 30368, 32864, 34164, 34602, 36972, 45552, 46136, 49296, 51903, 68328, 69204, 73944, 74971, 91104, 92272, 98592, 103806, 136656, 138408, 147888, 149942, 184544, 207612, 224913, 273312, 276816, 295776, 299884, 415224, 449826, 553632, 599768, 674739, 830448, 899652, 1199536, 1349478, 1660896, 1799304, 2399072, 2698956, 3598608, 5397912, 7197216, 10795824, 21591648]

約数ペア:

[(1, 21591648), (2, 10795824), (3, 7197216), (4, 5397912), (6, 3598608), (8, 2698956), (9, 2399072), (12, 1799304), (13, 1660896), (16, 1349478), (18, 1199536), (24, 899652), (26, 830448), (32, 674739), (36, 599768), (39, 553632), (48, 449826), (52, 415224), (72, 299884), (73, 295776), (78, 276816), (79, 273312), (96, 224913), (104, 207612), (117, 184544), (144, 149942), (146, 147888), (156, 138408), (158, 136656), (208, 103806), (219, 98592), (234, 92272), (237, 91104), (288, 74971), (292, 73944), (312, 69204), (316, 68328), (416, 51903), (438, 49296), (468, 46136), (474, 45552), (584, 36972), (624, 34602), (632, 34164), (657, 32864), (711, 30368), (876, 24648), (936, 23068), (948, 22776), (949, 22752), (1027, 21024), (1168, 18486), (1248, 17301), (1264, 17082), (1314, 16432), (1422, 15184), (1752, 12324), (1872, 11534), (1896, 11388), (1898, 11376), (2054, 10512), (2336, 9243), (2528, 8541), (2628, 8216), (2844, 7592), (2847, 7584), (3081, 7008), (3504, 6162), (3744, 5767), (3792, 5694), (3796, 5688), (4108, 5256)]