20888937

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{439}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 32123520

約数和(自身を除く): 11234583

約数列:

[1, 3, 9, 17, 51, 153, 311, 439, 933, 1317, 2799, 3951, 5287, 7463, 15861, 22389, 47583, 67167, 136529, 409587, 1228761, 2320993, 6962979, 20888937]

約数ペア:

[(1, 20888937), (3, 6962979), (9, 2320993), (17, 1228761), (51, 409587), (153, 136529), (311, 67167), (439, 47583), (933, 22389), (1317, 15861), (2799, 7463), (3951, 5287)]