19681788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5449}}^1$

素因数の和:5506

約数の個数: 48

約数和(自身を含む): 53715200

約数和(自身を除く): 34033412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 84, 86, 129, 172, 258, 301, 516, 602, 903, 1204, 1806, 3612, 5449, 10898, 16347, 21796, 32694, 38143, 65388, 76286, 114429, 152572, 228858, 234307, 457716, 468614, 702921, 937228, 1405842, 1640149, 2811684, 3280298, 4920447, 6560596, 9840894, 19681788]

約数ペア:

[(1, 19681788), (2, 9840894), (3, 6560596), (4, 4920447), (6, 3280298), (7, 2811684), (12, 1640149), (14, 1405842), (21, 937228), (28, 702921), (42, 468614), (43, 457716), (84, 234307), (86, 228858), (129, 152572), (172, 114429), (258, 76286), (301, 65388), (516, 38143), (602, 32694), (903, 21796), (1204, 16347), (1806, 10898), (3612, 5449)]