645952321

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{15439}}^1$

素因数の和:15628

約数の個数: 16

約数和(自身を含む): 760883200

約数和(自身を除く): 114930879

約数列:

[1, 7, 43, 139, 301, 973, 5977, 15439, 41839, 108073, 663877, 2146021, 4647139, 15022147, 92278903, 645952321]

約数ペア:

[(1, 645952321), (7, 92278903), (43, 15022147), (139, 4647139), (301, 2146021), (973, 663877), (5977, 108073), (15439, 41839)]