21725949

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3203}}^1$

素因数の和:3249

約数の個数: 32

約数和(自身を含む): 36910080

約数和(自身を除く): 15184131

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 3203, 6783, 9609, 22421, 54451, 60857, 67263, 163353, 182571, 381157, 425999, 1034569, 1143471, 1277997, 3103707, 7241983, 21725949]

約数ペア:

[(1, 21725949), (3, 7241983), (7, 3103707), (17, 1277997), (19, 1143471), (21, 1034569), (51, 425999), (57, 381157), (119, 182571), (133, 163353), (323, 67263), (357, 60857), (399, 54451), (969, 22421), (2261, 9609), (3203, 6783)]