20798988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247607}}^1$

素因数の和:247621

約数の個数: 24

約数和(自身を含む): 55464192

約数和(自身を除く): 34665204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247607, 495214, 742821, 990428, 1485642, 1733249, 2971284, 3466498, 5199747, 6932996, 10399494, 20798988]

約数ペア:

[(1, 20798988), (2, 10399494), (3, 6932996), (4, 5199747), (6, 3466498), (7, 2971284), (12, 1733249), (14, 1485642), (21, 990428), (28, 742821), (42, 495214), (84, 247607)]