21257517310

素因数分解:

$2^1\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{1317887}}^1$

素因数の和:1319507

約数の個数: 16

約数和(自身を含む): 38287282176

約数和(自身を除く): 17029764866

約数列:

[1, 2, 5, 10, 1613, 3226, 8065, 16130, 1317887, 2635774, 6589435, 13178870, 2125751731, 4251503462, 10628758655, 21257517310]

約数ペア:

[(1, 21257517310), (2, 10628758655), (5, 4251503462), (10, 2125751731), (1613, 13178870), (3226, 6589435), (8065, 2635774), (16130, 1317887)]