13500018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 33633600

約数和(自身を除く): 20133582

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 307, 349, 614, 698, 921, 1047, 1842, 2094, 2149, 2443, 2763, 3141, 4298, 4886, 5526, 6282, 6447, 7329, 12894, 14658, 19341, 21987, 38682, 43974, 107143, 214286, 321429, 642858, 750001, 964287, 1500002, 1928574, 2250003, 4500006, 6750009, 13500018]

約数ペア:

[(1, 13500018), (2, 6750009), (3, 4500006), (6, 2250003), (7, 1928574), (9, 1500002), (14, 964287), (18, 750001), (21, 642858), (42, 321429), (63, 214286), (126, 107143), (307, 43974), (349, 38682), (614, 21987), (698, 19341), (921, 14658), (1047, 12894), (1842, 7329), (2094, 6447), (2149, 6282), (2443, 5526), (2763, 4886), (3141, 4298)]