20806786

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{547}}^1$

素因数の和:599

約数の個数: 64

約数和(自身を含む): 44190720

約数和(自身を除く): 23383934

約数列:

[1, 2, 7, 11, 13, 14, 19, 22, 26, 38, 77, 91, 133, 143, 154, 182, 209, 247, 266, 286, 418, 494, 547, 1001, 1094, 1463, 1729, 2002, 2717, 2926, 3458, 3829, 5434, 6017, 7111, 7658, 10393, 12034, 14222, 19019, 20786, 38038, 42119, 49777, 72751, 78221, 84238, 99554, 114323, 135109, 145502, 156442, 228646, 270218, 547547, 800261, 945763, 1095094, 1486199, 1600522, 1891526, 2972398, 10403393, 20806786]

約数ペア:

[(1, 20806786), (2, 10403393), (7, 2972398), (11, 1891526), (13, 1600522), (14, 1486199), (19, 1095094), (22, 945763), (26, 800261), (38, 547547), (77, 270218), (91, 228646), (133, 156442), (143, 145502), (154, 135109), (182, 114323), (209, 99554), (247, 84238), (266, 78221), (286, 72751), (418, 49777), (494, 42119), (547, 38038), (1001, 20786), (1094, 19019), (1463, 14222), (1729, 12034), (2002, 10393), (2717, 7658), (2926, 7111), (3458, 6017), (3829, 5434)]