20933731

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 26717040

約数和(自身を除く): 5783309

約数列:

[1, 7, 13, 49, 59, 91, 413, 557, 637, 767, 2891, 3899, 5369, 7241, 27293, 32863, 37583, 50687, 230041, 354809, 427219, 1610287, 2990533, 20933731]

約数ペア:

[(1, 20933731), (7, 2990533), (13, 1610287), (49, 427219), (59, 354809), (91, 230041), (413, 50687), (557, 37583), (637, 32863), (767, 27293), (2891, 7241), (3899, 5369)]