20872712

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1873}}^1$

素因数の和:2085

約数の個数: 32

約数和(自身を含む): 44976000

約数和(自身を除く): 24103288

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 1393, 1592, 1873, 2786, 3746, 5572, 7492, 11144, 13111, 14984, 26222, 52444, 104888, 372727, 745454, 1490908, 2609089, 2981816, 5218178, 10436356, 20872712]

約数ペア:

[(1, 20872712), (2, 10436356), (4, 5218178), (7, 2981816), (8, 2609089), (14, 1490908), (28, 745454), (56, 372727), (199, 104888), (398, 52444), (796, 26222), (1393, 14984), (1592, 13111), (1873, 11144), (2786, 7492), (3746, 5572)]