21089845

素因数分解:

$5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1459}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 29959200

約数和(自身を除く): 8869355

約数列:

[1, 5, 7, 35, 49, 59, 245, 295, 413, 1459, 2065, 2891, 7295, 10213, 14455, 51065, 71491, 86081, 357455, 430405, 602567, 3012835, 4217969, 21089845]

約数ペア:

[(1, 21089845), (5, 4217969), (7, 3012835), (35, 602567), (49, 430405), (59, 357455), (245, 86081), (295, 71491), (413, 51065), (1459, 14455), (2065, 10213), (2891, 7295)]