745154721

素因数分解:

$3^4\times {\mathrm{2213}}^1\times {\mathrm{4157}}^1$

素因数の和:6382

約数の個数: 20

約数和(自身を含む): 1113903252

約数和(自身を除く): 368748531

約数列:

[1, 3, 9, 27, 81, 2213, 4157, 6639, 12471, 19917, 37413, 59751, 112239, 179253, 336717, 9199441, 27598323, 82794969, 248384907, 745154721]

約数ペア:

[(1, 745154721), (3, 248384907), (9, 82794969), (27, 27598323), (81, 9199441), (2213, 336717), (4157, 179253), (6639, 112239), (12471, 59751), (19917, 37413)]