20880477

素因数分解:

$3^3\times {\mathrm{193}}^1\times {\mathrm{4007}}^1$

素因数の和:4209

約数の個数: 16

約数和(自身を含む): 31102080

約数和(自身を除く): 10221603

約数列:

[1, 3, 9, 27, 193, 579, 1737, 4007, 5211, 12021, 36063, 108189, 773351, 2320053, 6960159, 20880477]

約数ペア:

[(1, 20880477), (3, 6960159), (9, 2320053), (27, 773351), (193, 108189), (579, 36063), (1737, 12021), (4007, 5211)]