28703727

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{27259}}^1$

素因数の和:27284

約数の個数: 20

約数和(自身を含む): 46178440

約数和(自身を除く): 17474713

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 27259, 81777, 245331, 354367, 735993, 1063101, 2207979, 3189303, 9567909, 28703727]

約数ペア:

[(1, 28703727), (3, 9567909), (9, 3189303), (13, 2207979), (27, 1063101), (39, 735993), (81, 354367), (117, 245331), (351, 81777), (1053, 27259)]