81808489

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 99858528

約数和(自身を除く): 18050039

約数列:

[1, 7, 41, 43, 49, 287, 301, 947, 1763, 2009, 2107, 6629, 12341, 38827, 40721, 46403, 86387, 271789, 285047, 1669561, 1902523, 1995329, 11686927, 81808489]

約数ペア:

[(1, 81808489), (7, 11686927), (41, 1995329), (43, 1902523), (49, 1669561), (287, 285047), (301, 271789), (947, 86387), (1763, 46403), (2009, 40721), (2107, 38827), (6629, 12341)]