28214649

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{2659}}^1$

素因数の和:2802

約数の個数: 20

約数和(自身を含む): 42485520

約数和(自身を除く): 14270871

約数列:

[1, 3, 9, 27, 81, 131, 393, 1179, 2659, 3537, 7977, 10611, 23931, 71793, 215379, 348329, 1044987, 3134961, 9404883, 28214649]

約数ペア:

[(1, 28214649), (3, 9404883), (9, 3134961), (27, 1044987), (81, 348329), (131, 215379), (393, 71793), (1179, 23931), (2659, 10611), (3537, 7977)]