18827788

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 39424000

約数和(自身を除く): 20596212

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 109, 124, 199, 217, 218, 398, 434, 436, 763, 796, 868, 1393, 1526, 2786, 3052, 3379, 5572, 6169, 6758, 12338, 13516, 21691, 23653, 24676, 43183, 43382, 47306, 86366, 86764, 94612, 151837, 172732, 303674, 607348, 672421, 1344842, 2689684, 4706947, 9413894, 18827788]

約数ペア:

[(1, 18827788), (2, 9413894), (4, 4706947), (7, 2689684), (14, 1344842), (28, 672421), (31, 607348), (62, 303674), (109, 172732), (124, 151837), (199, 94612), (217, 86764), (218, 86366), (398, 47306), (434, 43382), (436, 43183), (763, 24676), (796, 23653), (868, 21691), (1393, 13516), (1526, 12338), (2786, 6758), (3052, 6169), (3379, 5572)]