139988219

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{1787}}^1$

素因数の和:1863

約数の個数: 24

約数和(自身を含む): 174394368

約数和(自身を除く): 34406149

約数列:

[1, 7, 19, 31, 133, 217, 361, 589, 1787, 2527, 4123, 11191, 12509, 33953, 55397, 78337, 237671, 387779, 645107, 1052543, 4515749, 7367801, 19998317, 139988219]

約数ペア:

[(1, 139988219), (7, 19998317), (19, 7367801), (31, 4515749), (133, 1052543), (217, 645107), (361, 387779), (589, 237671), (1787, 78337), (2527, 55397), (4123, 33953), (11191, 12509)]