20970131

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4903}}^1$

素因数の和:4970

約数の個数: 16

約数和(自身を含む): 26363904

約数和(自身を除く): 5393773

約数列:

[1, 7, 13, 47, 91, 329, 611, 4277, 4903, 34321, 63739, 230441, 446173, 1613087, 2995733, 20970131]

約数ペア:

[(1, 20970131), (7, 2995733), (13, 1613087), (47, 446173), (91, 230441), (329, 63739), (611, 34321), (4277, 4903)]