19748421

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 39398400

約数和(自身を除く): 19649979

約数列:

[1, 3, 7, 9, 11, 21, 23, 27, 33, 49, 59, 63, 69, 77, 99, 147, 161, 177, 189, 207, 231, 253, 297, 413, 441, 483, 531, 539, 621, 649, 693, 759, 1127, 1239, 1323, 1357, 1449, 1593, 1617, 1771, 1947, 2079, 2277, 2891, 3381, 3717, 4071, 4347, 4543, 4851, 5313, 5841, 6831, 8673, 9499, 10143, 11151, 12213, 12397, 13629, 14553, 14927, 15939, 17523, 26019, 28497, 30429, 31801, 36639, 37191, 40887, 44781, 47817, 66493, 78057, 85491, 95403, 104489, 111573, 122661, 134343, 199479, 256473, 286209, 313467, 334719, 403029, 598437, 731423, 858627, 940401, 1795311, 2194269, 2821203, 6582807, 19748421]

約数ペア:

[(1, 19748421), (3, 6582807), (7, 2821203), (9, 2194269), (11, 1795311), (21, 940401), (23, 858627), (27, 731423), (33, 598437), (49, 403029), (59, 334719), (63, 313467), (69, 286209), (77, 256473), (99, 199479), (147, 134343), (161, 122661), (177, 111573), (189, 104489), (207, 95403), (231, 85491), (253, 78057), (297, 66493), (413, 47817), (441, 44781), (483, 40887), (531, 37191), (539, 36639), (621, 31801), (649, 30429), (693, 28497), (759, 26019), (1127, 17523), (1239, 15939), (1323, 14927), (1357, 14553), (1449, 13629), (1593, 12397), (1617, 12213), (1771, 11151), (1947, 10143), (2079, 9499), (2277, 8673), (2891, 6831), (3381, 5841), (3717, 5313), (4071, 4851), (4347, 4543)]