1804720617

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{87071}}^1$

素因数の和:87138

約数の個数: 36

約数和(自身を含む): 3096976896

約数和(自身を除く): 1292256279

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 2303, 2961, 6909, 20727, 87071, 261213, 609497, 783639, 1828491, 4092337, 4266479, 5485473, 12277011, 12799437, 28646359, 36831033, 38398311, 85939077, 200524513, 257817231, 601573539, 1804720617]

約数ペア:

[(1, 1804720617), (3, 601573539), (7, 257817231), (9, 200524513), (21, 85939077), (47, 38398311), (49, 36831033), (63, 28646359), (141, 12799437), (147, 12277011), (329, 5485473), (423, 4266479), (441, 4092337), (987, 1828491), (2303, 783639), (2961, 609497), (6909, 261213), (20727, 87071)]