138580918

素因数分解:

$2^1\times 7^4\times {\mathrm{28859}}^1$

素因数の和:28889

約数の個数: 20

約数和(自身を含む): 242510580

約数和(自身を除く): 103929662

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 28859, 57718, 202013, 404026, 1414091, 2828182, 9898637, 19797274, 69290459, 138580918]

約数ペア:

[(1, 138580918), (2, 69290459), (7, 19797274), (14, 9898637), (49, 2828182), (98, 1414091), (343, 404026), (686, 202013), (2401, 57718), (4802, 28859)]