18779978

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{28541}}^1$

素因数の和:28597

約数の個数: 16

約数和(自身を含む): 32880384

約数和(自身を除く): 14100406

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 28541, 57082, 199787, 399574, 1341427, 2682854, 9389989, 18779978]

約数ペア:

[(1, 18779978), (2, 9389989), (7, 2682854), (14, 1341427), (47, 399574), (94, 199787), (329, 57082), (658, 28541)]