81908036

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{43661}}^1$

素因数の和:43739

約数の個数: 24

約数和(自身を含む): 166264896

約数和(自身を除く): 84356860

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 43661, 87322, 174644, 305627, 611254, 1222508, 2925287, 5850574, 11701148, 20477009, 40954018, 81908036]

約数ペア:

[(1, 81908036), (2, 40954018), (4, 20477009), (7, 11701148), (14, 5850574), (28, 2925287), (67, 1222508), (134, 611254), (268, 305627), (469, 174644), (938, 87322), (1876, 43661)]