20184129

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1237}}^1$

素因数の和:1294

約数の個数: 36

約数和(自身を含む): 34859604

約数和(自身を除く): 14675475

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 259, 333, 441, 777, 1237, 1813, 2331, 3711, 5439, 8659, 11133, 16317, 25977, 45769, 60613, 77931, 137307, 181839, 320383, 411921, 545517, 961149, 2242681, 2883447, 6728043, 20184129]

約数ペア:

[(1, 20184129), (3, 6728043), (7, 2883447), (9, 2242681), (21, 961149), (37, 545517), (49, 411921), (63, 320383), (111, 181839), (147, 137307), (259, 77931), (333, 60613), (441, 45769), (777, 25977), (1237, 16317), (1813, 11133), (2331, 8659), (3711, 5439)]