18157020183

素因数分解:

$3^4\times {\mathrm{487}}^1\times {\mathrm{460289}}^1$

素因数の和:460788

約数の個数: 20

約数和(自身を含む): 27179203920

約数和(自身を除く): 9022183737

約数列:

[1, 3, 9, 27, 81, 487, 1461, 4383, 13149, 39447, 460289, 1380867, 4142601, 12427803, 37283409, 224160743, 672482229, 2017446687, 6052340061, 18157020183]

約数ペア:

[(1, 18157020183), (3, 6052340061), (9, 2017446687), (27, 672482229), (81, 224160743), (487, 37283409), (1461, 12427803), (4383, 4142601), (13149, 1380867), (39447, 460289)]