21066661

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6673}}^1$

素因数の和:6732

約数の個数: 16

約数和(自身を含む): 26909568

約数和(自身を除く): 5842907

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6673, 46711, 73403, 273593, 513821, 1915151, 3009523, 21066661]

約数ペア:

[(1, 21066661), (7, 3009523), (11, 1915151), (41, 513821), (77, 273593), (287, 73403), (451, 46711), (3157, 6673)]