20618287

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 22556800

約数和(自身を除く): 1938513

約数列:

[1, 19, 37, 139, 211, 703, 2641, 4009, 5143, 7807, 29329, 97717, 148333, 557251, 1085173, 20618287]

約数ペア:

[(1, 20618287), (19, 1085173), (37, 557251), (139, 148333), (211, 97717), (703, 29329), (2641, 7807), (4009, 5143)]