19908685

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{743}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 25069824

約数和(自身を除く): 5161139

約数列:

[1, 5, 23, 115, 233, 743, 1165, 3715, 5359, 17089, 26795, 85445, 173119, 865595, 3981737, 19908685]

約数ペア:

[(1, 19908685), (5, 3981737), (23, 865595), (115, 173119), (233, 85445), (743, 26795), (1165, 17089), (3715, 5359)]