20892711

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1431

約数の個数: 32

約数和(自身を含む): 34518528

約数和(自身を除く): 13625817

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1361, 2193, 4083, 5117, 9527, 15351, 23137, 28581, 58523, 69411, 161959, 175569, 409661, 485877, 994891, 1228983, 2984673, 6964237, 20892711]

約数ペア:

[(1, 20892711), (3, 6964237), (7, 2984673), (17, 1228983), (21, 994891), (43, 485877), (51, 409661), (119, 175569), (129, 161959), (301, 69411), (357, 58523), (731, 28581), (903, 23137), (1361, 15351), (2193, 9527), (4083, 5117)]