998686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:627

約数の個数: 16

約数和(自身を含む): 1639008

約数和(自身を除く): 640322

約数列:

[1, 2, 13, 26, 71, 142, 541, 923, 1082, 1846, 7033, 14066, 38411, 76822, 499343, 998686]

約数ペア:

[(1, 998686), (2, 499343), (13, 76822), (26, 38411), (71, 14066), (142, 7033), (541, 1846), (923, 1082)]