212109305

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{4561}}^1$

素因数の和:4768

約数の個数: 16

約数和(自身を含む): 260143488

約数和(自身を除く): 48034183

約数列:

[1, 5, 71, 131, 355, 655, 4561, 9301, 22805, 46505, 323831, 597491, 1619155, 2987455, 42421861, 212109305]

約数ペア:

[(1, 212109305), (5, 42421861), (71, 2987455), (131, 1619155), (355, 597491), (655, 323831), (4561, 46505), (9301, 22805)]