71378991

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{10181}}^1$

素因数の和:10247

約数の個数: 24

約数和(自身を含む): 111187440

約数和(自身を除く): 39808449

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 7011, 10181, 30543, 91629, 193439, 417421, 580317, 1252263, 1740951, 3756789, 7930999, 23792997, 71378991]

約数ペア:

[(1, 71378991), (3, 23792997), (9, 7930999), (19, 3756789), (41, 1740951), (57, 1252263), (123, 580317), (171, 417421), (369, 193439), (779, 91629), (2337, 30543), (7011, 10181)]