20693390

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23251}}^1$

素因数の和:23347

約数の個数: 16

約数和(自身を含む): 37668240

約数和(自身を除く): 16974850

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23251, 46502, 116255, 232510, 2069339, 4138678, 10346695, 20693390]

約数ペア:

[(1, 20693390), (2, 10346695), (5, 4138678), (10, 2069339), (89, 232510), (178, 116255), (445, 46502), (890, 23251)]