39991978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{35771}}^1$

素因数の和:35829

約数の個数: 16

約数和(自身を含む): 66106656

約数和(自身を除く): 26114678

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 35771, 71542, 465023, 930046, 1538153, 3076306, 19995989, 39991978]

約数ペア:

[(1, 39991978), (2, 19995989), (13, 3076306), (26, 1538153), (43, 930046), (86, 465023), (559, 71542), (1118, 35771)]