28180953

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 56

約数和(自身を含む): 46168320

約数和(自身を除く): 17987367

約数列:

[1, 3, 9, 27, 29, 31, 43, 81, 87, 93, 129, 243, 261, 279, 387, 729, 783, 837, 899, 1161, 1247, 1333, 2349, 2511, 2697, 3483, 3741, 3999, 7047, 7533, 8091, 10449, 11223, 11997, 21141, 22599, 24273, 31347, 33669, 35991, 38657, 72819, 101007, 107973, 115971, 218457, 303021, 323919, 347913, 655371, 909063, 971757, 1043739, 3131217, 9393651, 28180953]

約数ペア:

[(1, 28180953), (3, 9393651), (9, 3131217), (27, 1043739), (29, 971757), (31, 909063), (43, 655371), (81, 347913), (87, 323919), (93, 303021), (129, 218457), (243, 115971), (261, 107973), (279, 101007), (387, 72819), (729, 38657), (783, 35991), (837, 33669), (899, 31347), (1161, 24273), (1247, 22599), (1333, 21141), (2349, 11997), (2511, 11223), (2697, 10449), (3483, 8091), (3741, 7533), (3999, 7047)]