20565570837

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57606641}}^1$

素因数の和:57606668

約数の個数: 16

約数和(自身を含む): 33181425792

約数和(自身を除く): 12615854955

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57606641, 172819923, 403246487, 979312897, 1209739461, 2937938691, 6855190279, 20565570837]

約数ペア:

[(1, 20565570837), (3, 6855190279), (7, 2937938691), (17, 1209739461), (21, 979312897), (51, 403246487), (119, 172819923), (357, 57606641)]