12857817

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 20782080

約数和(自身を除く): 7924263

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 491, 609, 903, 1247, 1473, 3437, 3741, 8729, 10311, 14239, 21113, 26187, 42717, 63339, 99673, 147791, 299019, 443373, 612277, 1836831, 4285939, 12857817]

約数ペア:

[(1, 12857817), (3, 4285939), (7, 1836831), (21, 612277), (29, 443373), (43, 299019), (87, 147791), (129, 99673), (203, 63339), (301, 42717), (491, 26187), (609, 21113), (903, 14239), (1247, 10311), (1473, 8729), (3437, 3741)]