81430906

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{10639}}^1$

素因数の和:10773

約数の個数: 16

約数和(自身を含む): 126403200

約数和(自身を除く): 44972294

約数列:

[1, 2, 43, 86, 89, 178, 3827, 7654, 10639, 21278, 457477, 914954, 946871, 1893742, 40715453, 81430906]

約数ペア:

[(1, 81430906), (2, 40715453), (43, 1893742), (86, 946871), (89, 914954), (178, 457477), (3827, 21278), (7654, 10639)]