205002981

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{15527}}^1$

素因数の和:15702

約数の個数: 20

約数和(自身を含む): 308137632

約数和(自身を除く): 103134651

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 4401, 13203, 15527, 46581, 139743, 419229, 1257687, 2530901, 7592703, 22778109, 68334327, 205002981]

約数ペア:

[(1, 205002981), (3, 68334327), (9, 22778109), (27, 7592703), (81, 2530901), (163, 1257687), (489, 419229), (1467, 139743), (4401, 46581), (13203, 15527)]