18638564

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 20391196

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 109, 124, 197, 217, 218, 394, 434, 436, 763, 788, 868, 1379, 1526, 2758, 3052, 3379, 5516, 6107, 6758, 12214, 13516, 21473, 23653, 24428, 42749, 42946, 47306, 85498, 85892, 94612, 150311, 170996, 300622, 601244, 665663, 1331326, 2662652, 4659641, 9319282, 18638564]

約数ペア:

[(1, 18638564), (2, 9319282), (4, 4659641), (7, 2662652), (14, 1331326), (28, 665663), (31, 601244), (62, 300622), (109, 170996), (124, 150311), (197, 94612), (217, 85892), (218, 85498), (394, 47306), (434, 42946), (436, 42749), (763, 24428), (788, 23653), (868, 21473), (1379, 13516), (1526, 12214), (2758, 6758), (3052, 6107), (3379, 5516)]