20870066

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 37110528

約数和(自身を除く): 16240462

約数列:

[1, 2, 7, 14, 41, 82, 103, 206, 287, 353, 574, 706, 721, 1442, 2471, 4223, 4942, 8446, 14473, 28946, 29561, 36359, 59122, 72718, 101311, 202622, 254513, 509026, 1490719, 2981438, 10435033, 20870066]

約数ペア:

[(1, 20870066), (2, 10435033), (7, 2981438), (14, 1490719), (41, 509026), (82, 254513), (103, 202622), (206, 101311), (287, 72718), (353, 59122), (574, 36359), (706, 29561), (721, 28946), (1442, 14473), (2471, 8446), (4223, 4942)]