28406439

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{463}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 43647552

約数和(自身を除く): 15241113

約数列:

[1, 3, 9, 17, 51, 153, 401, 463, 1203, 1389, 3609, 4167, 6817, 7871, 20451, 23613, 61353, 70839, 185663, 556989, 1670967, 3156271, 9468813, 28406439]

約数ペア:

[(1, 28406439), (3, 9468813), (9, 3156271), (17, 1670967), (51, 556989), (153, 185663), (401, 70839), (463, 61353), (1203, 23613), (1389, 20451), (3609, 7871), (4167, 6817)]