128779947

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{2099}}^1$

素因数の和:2523

約数の個数: 24

約数和(自身を含む): 197542800

約数和(自身を除く): 68762853

約数列:

[1, 3, 9, 17, 51, 153, 401, 1203, 2099, 3609, 6297, 6817, 18891, 20451, 35683, 61353, 107049, 321147, 841699, 2525097, 7575291, 14308883, 42926649, 128779947]

約数ペア:

[(1, 128779947), (3, 42926649), (9, 14308883), (17, 7575291), (51, 2525097), (153, 841699), (401, 321147), (1203, 107049), (2099, 61353), (3609, 35683), (6297, 20451), (6817, 18891)]