19954004

素因数分解:

$2^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2153}}^1$

素因数の和:2495

約数の個数: 24

約数和(自身を含む): 40047168

約数和(自身を除く): 20093164

約数列:

[1, 2, 4, 7, 14, 28, 331, 662, 1324, 2153, 2317, 4306, 4634, 8612, 9268, 15071, 30142, 60284, 712643, 1425286, 2850572, 4988501, 9977002, 19954004]

約数ペア:

[(1, 19954004), (2, 9977002), (4, 4988501), (7, 2850572), (14, 1425286), (28, 712643), (331, 60284), (662, 30142), (1324, 15071), (2153, 9268), (2317, 8612), (4306, 4634)]