18989498

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{599}}^1$

素因数の和:754

約数の個数: 24

約数和(自身を含む): 31600800

約数和(自身を除く): 12611302

約数列:

[1, 2, 11, 22, 121, 131, 242, 262, 599, 1198, 1441, 2882, 6589, 13178, 15851, 31702, 72479, 78469, 144958, 156938, 863159, 1726318, 9494749, 18989498]

約数ペア:

[(1, 18989498), (2, 9494749), (11, 1726318), (22, 863159), (121, 156938), (131, 144958), (242, 78469), (262, 72479), (599, 31702), (1198, 15851), (1441, 13178), (2882, 6589)]