681686

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 16

約数和(自身を含む): 1069200

約数和(自身を除く): 387514

約数列:

[1, 2, 53, 59, 106, 109, 118, 218, 3127, 5777, 6254, 6431, 11554, 12862, 340843, 681686]

約数ペア:

[(1, 681686), (2, 340843), (53, 12862), (59, 11554), (106, 6431), (109, 6254), (118, 5777), (218, 3127)]