31404933

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 57620160

約数和(自身を除く): 26215227

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 59, 63, 71, 119, 147, 153, 177, 213, 357, 413, 441, 497, 531, 639, 833, 1003, 1071, 1207, 1239, 1491, 2499, 2891, 3009, 3479, 3621, 3717, 4189, 4473, 7021, 7497, 8449, 8673, 9027, 10437, 10863, 12567, 21063, 25347, 26019, 29323, 31311, 37701, 49147, 59143, 63189, 71213, 76041, 87969, 147441, 177429, 205261, 213639, 263907, 442323, 498491, 532287, 615783, 640917, 1495473, 1847349, 3489437, 4486419, 10468311, 31404933]

約数ペア:

[(1, 31404933), (3, 10468311), (7, 4486419), (9, 3489437), (17, 1847349), (21, 1495473), (49, 640917), (51, 615783), (59, 532287), (63, 498491), (71, 442323), (119, 263907), (147, 213639), (153, 205261), (177, 177429), (213, 147441), (357, 87969), (413, 76041), (441, 71213), (497, 63189), (531, 59143), (639, 49147), (833, 37701), (1003, 31311), (1071, 29323), (1207, 26019), (1239, 25347), (1491, 21063), (2499, 12567), (2891, 10863), (3009, 10437), (3479, 9027), (3621, 8673), (3717, 8449), (4189, 7497), (4473, 7021)]