18638978

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{2389}}^1$

素因数の和:2521

約数の個数: 16

約数和(自身を含む): 28909440

約数和(自身を除く): 10270462

約数列:

[1, 2, 47, 83, 94, 166, 2389, 3901, 4778, 7802, 112283, 198287, 224566, 396574, 9319489, 18638978]

約数ペア:

[(1, 18638978), (2, 9319489), (47, 396574), (83, 224566), (94, 198287), (166, 112283), (2389, 7802), (3901, 4778)]