21609601

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{353}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 24799824

約数和(自身を除く): 3190223

約数列:

[1, 13, 17, 221, 277, 353, 3601, 4589, 4709, 6001, 61217, 78013, 97781, 1271153, 1662277, 21609601]

約数ペア:

[(1, 21609601), (13, 1662277), (17, 1271153), (221, 97781), (277, 78013), (353, 61217), (3601, 6001), (4589, 4709)]