18853865

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 23115456

約数和(自身を除く): 4261591

約数列:

[1, 5, 83, 181, 251, 415, 905, 1255, 15023, 20833, 45431, 75115, 104165, 227155, 3770773, 18853865]

約数ペア:

[(1, 18853865), (5, 3770773), (83, 227155), (181, 104165), (251, 75115), (415, 45431), (905, 20833), (1255, 15023)]