81764188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{8807}}^1$

素因数の和:9033

約数の個数: 24

約数和(自身を含む): 156852864

約数和(自身を除く): 75088676

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 2321, 4642, 8807, 9284, 17614, 35228, 96877, 193754, 387508, 1858277, 3716554, 7433108, 20441047, 40882094, 81764188]

約数ペア:

[(1, 81764188), (2, 40882094), (4, 20441047), (11, 7433108), (22, 3716554), (44, 1858277), (211, 387508), (422, 193754), (844, 96877), (2321, 35228), (4642, 17614), (8807, 9284)]