18718942

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{77351}}^1$

素因数の和:77375

約数の個数: 12

約数和(自身を含む): 30863448

約数和(自身を除く): 12144506

約数列:

[1, 2, 11, 22, 121, 242, 77351, 154702, 850861, 1701722, 9359471, 18718942]

約数ペア:

[(1, 18718942), (2, 9359471), (11, 1701722), (22, 850861), (121, 154702), (242, 77351)]