209531231

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{1153}}^1\times {\mathrm{1997}}^1$

素因数の和:3170

約数の個数: 16

約数和(自身を含む): 258237504

約数和(自身を除く): 48706273

約数列:

[1, 7, 13, 91, 1153, 1997, 8071, 13979, 14989, 25961, 104923, 181727, 2302541, 16117787, 29933033, 209531231]

約数ペア:

[(1, 209531231), (7, 29933033), (13, 16117787), (91, 2302541), (1153, 181727), (1997, 104923), (8071, 25961), (13979, 14989)]