20666548

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3709}}^1$

素因数の和:3919

約数の個数: 24

約数和(自身を含む): 41552000

約数和(自身を除く): 20885452

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3709, 5572, 7418, 14836, 25963, 51926, 103852, 738091, 1476182, 2952364, 5166637, 10333274, 20666548]

約数ペア:

[(1, 20666548), (2, 10333274), (4, 5166637), (7, 2952364), (14, 1476182), (28, 738091), (199, 103852), (398, 51926), (796, 25963), (1393, 14836), (2786, 7418), (3709, 5572)]