20387948

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3659}}^1$

素因数の和:3869

約数の個数: 24

約数和(自身を含む): 40992000

約数和(自身を除く): 20604052

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3659, 5572, 7318, 14636, 25613, 51226, 102452, 728141, 1456282, 2912564, 5096987, 10193974, 20387948]

約数ペア:

[(1, 20387948), (2, 10193974), (4, 5096987), (7, 2912564), (14, 1456282), (28, 728141), (199, 102452), (398, 51226), (796, 25613), (1393, 14636), (2786, 7318), (3659, 5572)]