20562213

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3253}}^1$

素因数の和:3313

約数の個数: 24

約数和(自身を含む): 32644128

約数和(自身を除く): 12081915

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3253, 6321, 9759, 22771, 68313, 139879, 159397, 419637, 478191, 979153, 2937459, 6854071, 20562213]

約数ペア:

[(1, 20562213), (3, 6854071), (7, 2937459), (21, 979153), (43, 478191), (49, 419637), (129, 159397), (147, 139879), (301, 68313), (903, 22771), (2107, 9759), (3253, 6321)]