19954506

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1789}}^1$

素因数の和:1831

約数の個数: 48

約数和(自身を含む): 47170080

約数和(自身を除く): 27215574

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 169, 286, 338, 429, 507, 858, 1014, 1789, 1859, 3578, 3718, 5367, 5577, 10734, 11154, 19679, 23257, 39358, 46514, 59037, 69771, 118074, 139542, 255827, 302341, 511654, 604682, 767481, 907023, 1534962, 1814046, 3325751, 6651502, 9977253, 19954506]

約数ペア:

[(1, 19954506), (2, 9977253), (3, 6651502), (6, 3325751), (11, 1814046), (13, 1534962), (22, 907023), (26, 767481), (33, 604682), (39, 511654), (66, 302341), (78, 255827), (143, 139542), (169, 118074), (286, 69771), (338, 59037), (429, 46514), (507, 39358), (858, 23257), (1014, 19679), (1789, 11154), (1859, 10734), (3578, 5577), (3718, 5367)]