28520109

素因数分解:

$3^2\times {\mathrm{239}}^1\times {\mathrm{13259}}^1$

素因数の和:13504

約数の個数: 12

約数和(自身を含む): 41371200

約数和(自身を除く): 12851091

約数列:

[1, 3, 9, 239, 717, 2151, 13259, 39777, 119331, 3168901, 9506703, 28520109]

約数ペア:

[(1, 28520109), (3, 9506703), (9, 3168901), (239, 119331), (717, 39777), (2151, 13259)]