28505529

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12823}}^1$

素因数の和:12861

約数の個数: 24

約数和(自身を含む): 46679360

約数和(自身を除く): 18173831

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 12823, 38469, 115407, 166699, 243637, 500097, 730911, 1500291, 2192733, 3167281, 9501843, 28505529]

約数ペア:

[(1, 28505529), (3, 9501843), (9, 3167281), (13, 2192733), (19, 1500291), (39, 730911), (57, 500097), (117, 243637), (171, 166699), (247, 115407), (741, 38469), (2223, 12823)]