20565884409

素因数分解:

$3^1\times 7^1\times {\mathrm{1913}}^1\times {\mathrm{511933}}^1$

素因数の和:513856

約数の個数: 16

約数和(自身を含む): 31354933632

約数和(自身を除く): 10789049223

約数列:

[1, 3, 7, 21, 1913, 5739, 13391, 40173, 511933, 1535799, 3583531, 10750593, 979327829, 2937983487, 6855294803, 20565884409]

約数ペア:

[(1, 20565884409), (3, 6855294803), (7, 2937983487), (21, 979327829), (1913, 10750593), (5739, 3583531), (13391, 1535799), (40173, 511933)]