20020469

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 24548760

約数和(自身を除く): 4528291

約数列:

[1, 7, 29, 49, 73, 193, 203, 511, 1351, 1421, 2117, 3577, 5597, 9457, 14089, 14819, 39179, 98623, 103733, 274253, 408581, 690361, 2860067, 20020469]

約数ペア:

[(1, 20020469), (7, 2860067), (29, 690361), (49, 408581), (73, 274253), (193, 103733), (203, 98623), (511, 39179), (1351, 14819), (1421, 14089), (2117, 9457), (3577, 5597)]