20920363

素因数分解:

${\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:674

約数の個数: 12

約数和(自身を含む): 22217328

約数和(自身を除く): 1296965

約数列:

[1, 23, 71, 529, 557, 1633, 12811, 37559, 39547, 294653, 909581, 20920363]

約数ペア:

[(1, 20920363), (23, 909581), (71, 294653), (529, 39547), (557, 37559), (1633, 12811)]