28937979

素因数分解:

$3^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:366

約数の個数: 60

約数和(自身を含む): 52637904

約数和(自身を除く): 23699925

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 81, 147, 161, 189, 207, 317, 441, 483, 567, 621, 951, 1127, 1323, 1449, 1863, 2219, 2853, 3381, 3969, 4347, 6657, 7291, 8559, 10143, 13041, 15533, 19971, 21873, 25677, 30429, 46599, 51037, 59913, 65619, 91287, 139797, 153111, 179739, 196857, 357259, 419391, 459333, 590571, 1071777, 1258173, 1377999, 3215331, 4133997, 9645993, 28937979]

約数ペア:

[(1, 28937979), (3, 9645993), (7, 4133997), (9, 3215331), (21, 1377999), (23, 1258173), (27, 1071777), (49, 590571), (63, 459333), (69, 419391), (81, 357259), (147, 196857), (161, 179739), (189, 153111), (207, 139797), (317, 91287), (441, 65619), (483, 59913), (567, 51037), (621, 46599), (951, 30429), (1127, 25677), (1323, 21873), (1449, 19971), (1863, 15533), (2219, 13041), (2853, 10143), (3381, 8559), (3969, 7291), (4347, 6657)]