21507082

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{1481}}^1$

素因数の和:1673

約数の個数: 16

約数和(自身を含む): 33131592

約数和(自身を除く): 11624510

約数列:

[1, 2, 53, 106, 137, 274, 1481, 2962, 7261, 14522, 78493, 156986, 202897, 405794, 10753541, 21507082]

約数ペア:

[(1, 21507082), (2, 10753541), (53, 405794), (106, 202897), (137, 156986), (274, 78493), (1481, 14522), (2962, 7261)]