391987081

素因数分解:

${\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:904

約数の個数: 16

約数和(自身を含む): 417549760

約数和(自身を除く): 25562679

約数列:

[1, 19, 157, 331, 397, 2983, 6289, 7543, 51967, 62329, 131407, 987373, 1184251, 2496733, 20630899, 391987081]

約数ペア:

[(1, 391987081), (19, 20630899), (157, 2496733), (331, 1184251), (397, 987373), (2983, 131407), (6289, 62329), (7543, 51967)]