28212687

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{72901}}^1$

素因数の和:72950

約数の個数: 12

約数和(自身を含む): 41699944

約数和(自身を除く): 13487257

約数列:

[1, 3, 9, 43, 129, 387, 72901, 218703, 656109, 3134743, 9404229, 28212687]

約数ペア:

[(1, 28212687), (3, 9404229), (9, 3134743), (43, 656109), (129, 218703), (387, 72901)]