21000456821

素因数分解:

${\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1543}}^1\times {\mathrm{4933}}^1$

素因数の和:6596

約数の個数: 16

約数和(自身を含む): 21940116480

約数和(自身を除く): 939659659

約数列:

[1, 31, 89, 1543, 2759, 4933, 47833, 137327, 152923, 439037, 4257137, 7611619, 13610147, 235960189, 677434091, 21000456821]

約数ペア:

[(1, 21000456821), (31, 677434091), (89, 235960189), (1543, 13610147), (2759, 7611619), (4933, 4257137), (47833, 439037), (137327, 152923)]