18706978

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{5879}}^1$

素因数の和:5961

約数の個数: 16

約数和(自身を含む): 29494080

約数和(自身を除く): 10787102

約数列:

[1, 2, 37, 43, 74, 86, 1591, 3182, 5879, 11758, 217523, 252797, 435046, 505594, 9353489, 18706978]

約数ペア:

[(1, 18706978), (2, 9353489), (37, 505594), (43, 435046), (74, 252797), (86, 217523), (1591, 11758), (3182, 5879)]