209225541

素因数分解:

$3^1\times 7^4\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:999

約数の個数: 40

約数和(自身を含む): 336299264

約数和(自身を除く): 127073723

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 343, 651, 937, 1029, 1519, 2401, 2811, 4557, 6559, 7203, 10633, 19677, 29047, 31899, 45913, 74431, 87141, 137739, 203329, 223293, 321391, 609987, 964173, 1423303, 2249737, 4269909, 6749211, 9963121, 29889363, 69741847, 209225541]

約数ペア:

[(1, 209225541), (3, 69741847), (7, 29889363), (21, 9963121), (31, 6749211), (49, 4269909), (93, 2249737), (147, 1423303), (217, 964173), (343, 609987), (651, 321391), (937, 223293), (1029, 203329), (1519, 137739), (2401, 87141), (2811, 74431), (4557, 45913), (6559, 31899), (7203, 29047), (10633, 19677)]