20651481

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{73}}^1$

素因数の和:182

約数の個数: 36

約数和(自身を含む): 32779188

約数和(自身を除く): 12127707

約数列:

[1, 3, 9, 17, 43, 51, 73, 129, 153, 219, 387, 657, 731, 1241, 1849, 2193, 3139, 3723, 5547, 6579, 9417, 11169, 16641, 28251, 31433, 53363, 94299, 134977, 160089, 282897, 404931, 480267, 1214793, 2294609, 6883827, 20651481]

約数ペア:

[(1, 20651481), (3, 6883827), (9, 2294609), (17, 1214793), (43, 480267), (51, 404931), (73, 282897), (129, 160089), (153, 134977), (219, 94299), (387, 53363), (657, 31433), (731, 28251), (1241, 16641), (1849, 11169), (2193, 9417), (3139, 6579), (3723, 5547)]