12345213

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 18125280

約数和(自身を除く): 5780067

約数列:

[1, 3, 17, 29, 51, 87, 289, 491, 493, 867, 1473, 1479, 8347, 8381, 14239, 25041, 25143, 42717, 141899, 242063, 425697, 726189, 4115071, 12345213]

約数ペア:

[(1, 12345213), (3, 4115071), (17, 726189), (29, 425697), (51, 242063), (87, 141899), (289, 42717), (491, 25143), (493, 25041), (867, 14239), (1473, 8381), (1479, 8347)]