210258489

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{72031}}^1$

素因数の和:72180

約数の個数: 16

約数和(自身を含む): 322703360

約数和(自身を除く): 112444871

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 72031, 216093, 504217, 1512651, 10012309, 30036927, 70086163, 210258489]

約数ペア:

[(1, 210258489), (3, 70086163), (7, 30036927), (21, 10012309), (139, 1512651), (417, 504217), (973, 216093), (2919, 72031)]