1115289721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{645049}}^1$

素因数の和:645088

約数の個数: 16

約数和(自身を含む): 1444912000

約数和(自身を除く): 329622279

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 645049, 4515343, 8385637, 12255931, 58699459, 85791517, 159327103, 1115289721]

約数ペア:

[(1, 1115289721), (7, 159327103), (13, 85791517), (19, 58699459), (91, 12255931), (133, 8385637), (247, 4515343), (1729, 645049)]