821520832013

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{31039439}}^1$

素因数の和:31039664

約数の個数: 16

約数和(自身を含む): 993262080000

約数和(自身を除く): 171741247987

約数列:

[1, 7, 19, 133, 199, 1393, 3781, 26467, 31039439, 217276073, 589749341, 4128245387, 6176848361, 43237938527, 117360118859, 821520832013]

約数ペア:

[(1, 821520832013), (7, 117360118859), (19, 43237938527), (133, 6176848361), (199, 4128245387), (1393, 589749341), (3781, 217276073), (26467, 31039439)]