20747804

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 28023268

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 41, 44, 53, 62, 77, 82, 106, 124, 154, 164, 212, 217, 287, 308, 341, 371, 434, 451, 574, 583, 682, 742, 868, 902, 1148, 1166, 1271, 1364, 1484, 1643, 1804, 2173, 2332, 2387, 2542, 3157, 3286, 4081, 4346, 4774, 5084, 6314, 6572, 8162, 8692, 8897, 9548, 11501, 12628, 13981, 15211, 16324, 17794, 18073, 23002, 23903, 27962, 30422, 35588, 36146, 46004, 47806, 55924, 60844, 67363, 72292, 95612, 97867, 126511, 134726, 167321, 195734, 253022, 269452, 334642, 391468, 471541, 506044, 669284, 740993, 943082, 1481986, 1886164, 2963972, 5186951, 10373902, 20747804]

約数ペア:

[(1, 20747804), (2, 10373902), (4, 5186951), (7, 2963972), (11, 1886164), (14, 1481986), (22, 943082), (28, 740993), (31, 669284), (41, 506044), (44, 471541), (53, 391468), (62, 334642), (77, 269452), (82, 253022), (106, 195734), (124, 167321), (154, 134726), (164, 126511), (212, 97867), (217, 95612), (287, 72292), (308, 67363), (341, 60844), (371, 55924), (434, 47806), (451, 46004), (574, 36146), (583, 35588), (682, 30422), (742, 27962), (868, 23903), (902, 23002), (1148, 18073), (1166, 17794), (1271, 16324), (1364, 15211), (1484, 13981), (1643, 12628), (1804, 11501), (2173, 9548), (2332, 8897), (2387, 8692), (2542, 8162), (3157, 6572), (3286, 6314), (4081, 5084), (4346, 4774)]