1380379

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 1896048

約数和(自身を除く): 515669

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 197, 539, 637, 1001, 1379, 2167, 2561, 7007, 9653, 15169, 17927, 28171, 106183, 125489, 197197, 1380379]

約数ペア:

[(1, 1380379), (7, 197197), (11, 125489), (13, 106183), (49, 28171), (77, 17927), (91, 15169), (143, 9653), (197, 7007), (539, 2561), (637, 2167), (1001, 1379)]