18551547

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 34145280

約数和(自身を除く): 15593733

約数列:

[1, 3, 7, 9, 21, 23, 31, 49, 59, 63, 69, 93, 147, 161, 177, 207, 217, 279, 413, 441, 483, 531, 651, 713, 1127, 1239, 1357, 1449, 1519, 1829, 1953, 2139, 2891, 3381, 3717, 4071, 4557, 4991, 5487, 6417, 8673, 9499, 10143, 12213, 12803, 13671, 14973, 16461, 26019, 28497, 34937, 38409, 42067, 44919, 66493, 85491, 89621, 104811, 115227, 126201, 199479, 268863, 294469, 314433, 378603, 598437, 806589, 883407, 2061283, 2650221, 6183849, 18551547]

約数ペア:

[(1, 18551547), (3, 6183849), (7, 2650221), (9, 2061283), (21, 883407), (23, 806589), (31, 598437), (49, 378603), (59, 314433), (63, 294469), (69, 268863), (93, 199479), (147, 126201), (161, 115227), (177, 104811), (207, 89621), (217, 85491), (279, 66493), (413, 44919), (441, 42067), (483, 38409), (531, 34937), (651, 28497), (713, 26019), (1127, 16461), (1239, 14973), (1357, 13671), (1449, 12803), (1519, 12213), (1829, 10143), (1953, 9499), (2139, 8673), (2891, 6417), (3381, 5487), (3717, 4991), (4071, 4557)]