31897978

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{20903}}^1$

素因数の和:21021

約数の個数: 16

約数和(自身を含む): 55186560

約数和(自身を除く): 23288582

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 20903, 41806, 146321, 292642, 2278427, 4556854, 15948989, 31897978]

約数ペア:

[(1, 31897978), (2, 15948989), (7, 4556854), (14, 2278427), (109, 292642), (218, 146321), (763, 41806), (1526, 20903)]