20247969

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1319}}^1$

素因数の和:1389

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13206111

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1319, 2193, 3957, 5117, 9233, 15351, 22423, 27699, 56717, 67269, 156961, 170151, 397019, 470883, 964189, 1191057, 2892567, 6749323, 20247969]

約数ペア:

[(1, 20247969), (3, 6749323), (7, 2892567), (17, 1191057), (21, 964189), (43, 470883), (51, 397019), (119, 170151), (129, 156961), (301, 67269), (357, 56717), (731, 27699), (903, 22423), (1319, 15351), (2193, 9233), (3957, 5117)]