11971071

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:553

約数の個数: 40

約数和(自身を含む): 20955264

約数和(自身を除く): 8984193

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 301, 387, 491, 567, 903, 1161, 1473, 2709, 3437, 3483, 4419, 8127, 10311, 13257, 21113, 24381, 30933, 39771, 63339, 92799, 147791, 190017, 278397, 443373, 570051, 1330119, 1710153, 3990357, 11971071]

約数ペア:

[(1, 11971071), (3, 3990357), (7, 1710153), (9, 1330119), (21, 570051), (27, 443373), (43, 278397), (63, 190017), (81, 147791), (129, 92799), (189, 63339), (301, 39771), (387, 30933), (491, 24381), (567, 21113), (903, 13257), (1161, 10311), (1473, 8127), (2709, 4419), (3437, 3483)]