20521363

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 22619520

約数和(自身を除く): 2098157

約数列:

[1, 17, 43, 67, 419, 731, 1139, 2881, 7123, 18017, 28073, 48977, 306289, 477241, 1207139, 20521363]

約数ペア:

[(1, 20521363), (17, 1207139), (43, 477241), (67, 306289), (419, 48977), (731, 28073), (1139, 18017), (2881, 7123)]