131152231

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{20981}}^1$

素因数の和:21054

約数の個数: 16

約数和(自身を含む): 161141760

約数和(自身を除く): 29989529

約数列:

[1, 7, 19, 47, 133, 329, 893, 6251, 20981, 146867, 398639, 986107, 2790473, 6902749, 18736033, 131152231]

約数ペア:

[(1, 131152231), (7, 18736033), (19, 6902749), (47, 2790473), (133, 986107), (329, 398639), (893, 146867), (6251, 20981)]