128540321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{12959}}^1$

素因数の和:13088

約数の個数: 16

約数和(自身を含む): 159667200

約数和(自身を除く): 31126879

約数列:

[1, 7, 13, 91, 109, 763, 1417, 9919, 12959, 90713, 168467, 1179269, 1412531, 9887717, 18362903, 128540321]

約数ペア:

[(1, 128540321), (7, 18362903), (13, 9887717), (91, 1412531), (109, 1179269), (763, 168467), (1417, 90713), (9919, 12959)]