209681247

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{733}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 304404480

約数和(自身を除く): 94723233

約数列:

[1, 3, 17, 51, 71, 79, 213, 237, 733, 1207, 1343, 2199, 3621, 4029, 5609, 12461, 16827, 37383, 52043, 57907, 95353, 156129, 173721, 286059, 884731, 984419, 2654193, 2953257, 4111397, 12334191, 69893749, 209681247]

約数ペア:

[(1, 209681247), (3, 69893749), (17, 12334191), (51, 4111397), (71, 2953257), (79, 2654193), (213, 984419), (237, 884731), (733, 286059), (1207, 173721), (1343, 156129), (2199, 95353), (3621, 57907), (4029, 52043), (5609, 37383), (12461, 16827)]