81800018

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1\times {\mathrm{3361}}^1$

素因数の和:3689

約数の個数: 16

約数和(自身を含む): 126034656

約数和(自身を除く): 44234638

約数列:

[1, 2, 43, 86, 283, 566, 3361, 6722, 12169, 24338, 144523, 289046, 951163, 1902326, 40900009, 81800018]

約数ペア:

[(1, 81800018), (2, 40900009), (43, 1902326), (86, 951163), (283, 289046), (566, 144523), (3361, 24338), (6722, 12169)]