20563478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{823}}^1$

素因数の和:900

約数の個数: 24

約数和(自身を含む): 34365744

約数和(自身を除く): 13802266

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 823, 961, 1646, 1922, 10699, 12493, 21398, 24986, 25513, 51026, 331669, 663338, 790903, 1581806, 10281739, 20563478]

約数ペア:

[(1, 20563478), (2, 10281739), (13, 1581806), (26, 790903), (31, 663338), (62, 331669), (403, 51026), (806, 25513), (823, 24986), (961, 21398), (1646, 12493), (1922, 10699)]