20091178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{919}}^1$

素因数の和:1581

約数の個数: 16

約数和(自身を含む): 31993920

約数和(自身を除く): 11902742

約数列:

[1, 2, 17, 34, 643, 919, 1286, 1838, 10931, 15623, 21862, 31246, 590917, 1181834, 10045589, 20091178]

約数ペア:

[(1, 20091178), (2, 10045589), (17, 1181834), (34, 590917), (643, 31246), (919, 21862), (1286, 15623), (1838, 10931)]