15678840987

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{40513801}}^1$

素因数の和:40513850

約数の個数: 12

約数和(自身を含む): 23173894744

約数和(自身を除く): 7495053757

約数列:

[1, 3, 9, 43, 129, 387, 40513801, 121541403, 364624209, 1742093443, 5226280329, 15678840987]

約数ペア:

[(1, 15678840987), (3, 5226280329), (9, 1742093443), (43, 364624209), (129, 121541403), (387, 40513801)]