20485467

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5381}}^1$

素因数の和:5440

約数の個数: 20

約数和(自身を含む): 31258656

約数和(自身を除く): 10773189

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5381, 16143, 48429, 145287, 252907, 435861, 758721, 2276163, 6828489, 20485467]

約数ペア:

[(1, 20485467), (3, 6828489), (9, 2276163), (27, 758721), (47, 435861), (81, 252907), (141, 145287), (423, 48429), (1269, 16143), (3807, 5381)]