208520781

素因数分解:

$3^1\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{9631}}^1$

素因数の和:10672

約数の個数: 16

約数和(自身を含む): 318087168

約数和(自身を除く): 109566387

約数列:

[1, 3, 7, 21, 1031, 3093, 7217, 9631, 21651, 28893, 67417, 202251, 9929561, 29788683, 69506927, 208520781]

約数ペア:

[(1, 208520781), (3, 69506927), (7, 29788683), (21, 9929561), (1031, 202251), (3093, 67417), (7217, 28893), (9631, 21651)]