15767721

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{401}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 24269544

約数和(自身を除く): 8501823

約数列:

[1, 3, 9, 17, 51, 153, 257, 401, 771, 1203, 2313, 3609, 4369, 6817, 13107, 20451, 39321, 61353, 103057, 309171, 927513, 1751969, 5255907, 15767721]

約数ペア:

[(1, 15767721), (3, 5255907), (9, 1751969), (17, 927513), (51, 309171), (153, 103057), (257, 61353), (401, 39321), (771, 20451), (1203, 13107), (2313, 6817), (3609, 4369)]